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A question mark appears on my screen - Apple MacBook Air

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Usually points to the fact that the computer cannot find the operating system. Try inserting the install CD and see if that works

Posted on Mar 26, 2011

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6ya6ya
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Posted on Jan 02, 2017

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How to fix canon 5D mark 2 error #30?


On the 5D error code 30 appears to be shutter related and general advice is to get a professional repair or send it back to Canon.

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I have marks appearing on the inside of my screen


Sounds like you have a defective tablet. Return it while you can.

It will only get worse with time.

Feb 20, 2014 | Computers & Internet

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Touch screen


After clearing the memory,or if the touch panel detection function is not working correctly,follow this procedure to calibrate the touch screen.Press the yellow reset key ,press 1993 and press red stop key 5 times to open the self diagnostics menu.On the touch screen press Touch Screen Adjust.Use a pointed tool to press the upper left mark.Press the lower right mark after it appears.Touch a few spots on the touch pannel to confirm that the marker appears exactly where the screen is touched.When you are finished press OK on the scree,touch Exit on the screen to close the self diagnostic menu and save the calibration settings.

Dec 30, 2013 | Ricoh Office Equipment & Supplies

1 Answer

UNLOCK TOMBOL SAMSUNG SGH I780


A Samsung SGH i780 can be unlocked safer and easier using unlock code. An unlock code can be acquired either from your network provider or from any reliable online source. For example, You can get the unlock code from http://www.superunlockcodes.com/samsung-i780/rs12wp9/ at low cost.
Here are the steps for unlocking a Samsung SGH - i780,
1. Switch ON your Samsung I780 with a NOT ACCEPTED SIM Card.
2. Enter the pin code to simcard.
3. At the top of screen an "exclamation mark" icon will appear.
4. Click on "exclamation mark" icon.
5. The link "settings" will appear, click on it.
6. Virtual keyboard appears on screen with Enter PIN prompt.
7. Enter your unlock code.

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1 Answer

I am using my headphone but there is no sound at all. i tried checking the master volume in the control panel and its not on mute.


If your Master volume is mute or showing disable its mean your sound card driver is not installed properly. Please install your sound card driver properly. to intall your sound card driver properly please follow these steps

1. keep your system driver's CD in your cd rom
2. on desktop write click on my computer and select the last option of "Properties"
3. a new window will appear select the 3rd tab HARDWARE
4. and now select the first tab DEVICE MANAGER
5. now a new window will appeared on your screen in this screen you can see a mark on the sound driver cross X mark or question yellow mark ? its mean you have any problem in your sound card driver
6. now right click on mark and select update driver
7. select your cd rom and click on next
after installing finish button will appear click on that and restart your PC your sound is enable now.

Jul 16, 2011 | Computers & Internet

1 Answer

Question mark appears on screen when I put a game inside of it.


  • Try calibrating the screen
  1. Turn the Leap Pad off.
  2. Now hold the question mark button for two seconds and then power the until on while still holding the question mark button down.
  3. The unit will power on and when you see the "calibration Screen" you can release the question mark button.
  4. Touch the crosshairs with the stylus and a large crosshair icon will appear in the middle of the screen.
  5. Touch this icon with the stylus and this will bring up the screen calibration procedure.
  6. Touch all 5 crosshairs as the appear.
  7. Press the "B" button to exit after completing the calibration.
Regards, Tony

May 11, 2011 | Leapster Learning System

1 Answer

Screen marks on my samsung lcd tv.


Sorry not a solution just confirmation of similar fault on a Samsung 32" . I to have this problem which appears to be getting worse . started with 1 mark and has now spread to about 20% of the screen albiet numerous marks. It appeared after 18months to 2 years after purchase in 2006 so now 4 years old. I've accepted there's nothing to be done and out of warranty. Problem is purchase a new set Samsung or another. But will I have the same problem 2 years after??

Oct 30, 2009 | Televison & Video

1 Answer

Weird Markings on Screen


Hello,
Try resetting calculator to default configuration.
[2nd][MEM][7:Reset][2:Defaults][2:reset]. Then [CLEAR] screen.
Hope it solves your problem.

Aug 18, 2009 | Texas Instruments TI-83 Plus Calculator

1 Answer

Can't copy pictures from sd to frame


Follow these steps, Selecting all:

1. Press whenever pictures/videos are displayed (slide show, video, single picture). 2. Press to highlight Select all, then press OK. A confirmation screen appears, then your picture display reappears. A check mark is displayed on all pictures/videos in your current location. 3. To remove all check marks, press , highlight Select / Unselect all and press OK. 4. Highlight Unselect all and press OK. A confirmation screen appears, then your picture display reappears. All check marks are removed. Also, you may download the user's guide at www.kodak.com/go/manuals

Jan 22, 2009 | Kodak EasyShare SV811 (8858946) Digital...

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