Some keys of my keyboard don't appear exactly

Solution 1 - Permanent OFF (windows 7)
Go to Start menu > Devices and Printers
Right click on HP Wireless Keyboard and Mouse Kit (yours may have slightly different name)
Left click on Region and Language
Left click on Change Keyboards button
Under General tab go to > Default Input Language section > select English (Canada)-US
Under General tab, now go to > Installed Services section > Keyboard heading > click on item for Canadian French then click the Remove button on the right,
Repeat step 6 to remove line item Canadian Multilingual Standard
Click Apply button at the bottom of window, then click OK button to get out of the window, click OK to get out of final window
Close your Devices and Printers window and you are done FOREVER with the unwanted characters! :smileyhappy:

Solution 2 - Temporary toggle between special/normal characters
If it's like mine, the default keyboard setting requires you to do the following:
press hold left ctrl+shift, then tap right shift key, this should toggle between the special characters and back to the normal characters when steps are repeated.

you need to press alt and insert ascii char code for the marks.

What type of symbol is it? Exactly which row and what key is it?

I don't know exactly what you're asking here, but if you mean the home keys, where your fingers are supposed to rest for touch typing, then it's: ASDF for the left hand, and JKL: for the right. Index fingers on F&J, middle fingers on D&K, so on.

Normally, if you hold down the "Fn" key, you'll get whatever character or function is printed in blue on those keys. So holding down the "Fn" key, you now have a numeric keypad in the middle of your keyboard. Release "Fn" and things are back to normal.
Which is exactly the opposite of what the question is asking. The person asking needed to press the "Fn" keys to get the normal, white, characters for each key.
The "problem" is simply that there is a persistent toggle. If you press "Num Lk" (I've also seen it labeled "Pad Lk" for numeric Pad) it turns on the blue keys, and inverts the meaning of the "Fn" key - it's a way to use that embedded numeric keypad without having to hold down the "Fn" key the entire time.

To fix it, just find and press the "Num Lk" or "Pad Lk" key again. (Note, sometimes these keys are themselves "Fn" keys, so you may, or may not, need to also hold down the "Fn" key to get the right function.) Often there is an indicator light associated with the setting.

n most cases the default wireless settings are sufficient for normal home use.

Locating the WEP or Network key:

To change your Residential Gateway wireless settings:

1. Open a Web browser and type http://gateway.2wire.net or http://192.168.1.254; the 2Wire Home page opens.
   
   

   If the Home page does not open, check to make sure that you have no software firewalls blocking network access.
   

2. Click the Home Networking tab at the top of the 2Wire Home page.
   
3. Click EDIT SETTINGS located on the right panel (Status at a Glance) under the Wireless Settings heading.
   
4. Change your wireless settings and use the following information if you want to change to a custom WEP key.

   64-bit hexadecimal keys are exactly 10 characters in length. (For example, 123456789A is a valid string of 10 characters for 64-bit encryption.)
   

   128-bit hexadecimal keys are exactly 26 characters in length. (For example, 456FBCDF123400144445271730 is a valid string of 26 characters for 128-bit encryption.)
   

   64-bit ASCII keys are exactly 5 characters in length. (For example, GMODE is a valid string of 5 characters for 64-bit encryption)
   

   128-bit ASCII keys are exactly 13 characters in length (For example, 2008SUNSSWIN1 is a valid string of 13 characters for 128-bit encryption.)
   

If you need more help come back.Post / thumbs / testimonial are welcome!

to restore your system to factory default....restart the system..immediately hold the AltGr key(the one right to the space bar)down...and keep tapping the F10 key...you should screen that says windows is loading file..if not try a couple of times...once you get that screen...navigate through the screen ..this will help you restore system to factory default
let me know if this helps...
regards

Your keyboard logic chip is in need of therapy.

Replacement of keyboard warranted.

Now, I thought that it might be a redesignation of your language code, but that proved not to be the case.

This is a mechanical problem. I had the same problem and was able to fix it. Instructions with pictures can be found at: http://www.sportmachines.com/keyboard/

Here are the instructions without the pictures:

I had a problem with my Gateway keyboard where whenver I pressed the left shift key, it type a pipe | (verticle line) character. This is the same character that is above the back slash character . I searched the internet and people were suggesting reloading drivers and apparently Gateway was suggesting a destructive reload of the hard drive. That's absolutely rediculous.
After some research, I determined that on some European style keyboards, the backslash/pipe key is between the left shift and the "Z" key. So, I removed the left shift key to experiment. The key simply pops off by sticking a screwdriver under it. (It is not necessary for you to do this).

When I used a little screwdriver to press on the center of the plastic (red arrow) I would get a proper shift key. However, when I pressed to the right (green arrow), I would get the backslash character. If I pushed at the red and green arrow together, I would get the pipe character.

Ah-hah! I determined the problem. The inside of the keyboard is a "universal" type and can be used with U.S. or Europeon keyboard layouts. For whatever reason, the left shift key was hitting both dots under the key. (The dots are visible in the pictures below.)
To resolve the problem, it is necessary to disassemble the keyboard. On the bottom of the keyboard is a bunch of screws. Remove all of the screws. If you have any rubber feet, there is probably screws under the rubber feet. The feet are just held on by sticky taope, so they peel right off.

Once all of the screws are removed the top and bottom halves seperate easily. The circuits stay in the bottom half of the keyboard, so set the top half of the keyboard to the side. The red arrow marks where the left shift key presses down.

Pull back the top layer and you will see the flexible circuits. These are also made up of multiple layers. When a key is pressed it pushes these layers together to complete the switch circuit. The red arrow marks the shift key. The green arrow marks the backslahs/pipe key for European style keyboards. The blue arrow is yet another key that is not used on U.S. keyboards.

Pull back the first layer of the switch circuit to expose the space between the circuit layers.

Place a small piece of electrical tape on the extra backslash/pipe circuit connection as marked by the red arrow.

Now simply reassemble the keyboard and that weird pipe character will never accidentally show up again.

Sounds like a classic problem for a driver/firmware update. get an update here before trying anything else- http://www.palm.com/us/support/downloads/tungstenc/tungstenc_update_30.html If it still doesn't solve it you might need to format it and reinstall everything from scratch. Good luck