Whenever im typing and hit the spacebar the cursor skips. its driving me nuts. pelase help me.

Turn off touch pad while typing.

I don't quite understand why this would happen after pluggin in a USB mouse - but I've seen it numerous times after a liquid has been spilled on a keyboard.

Sounds like you need to replace the keyboard. Best way to test this is to plug in an external usb keyboard and see if you can type normally on it.

If the laptop keyboard exhibits this behavior, and the external keyboard doesn't - you should replace the laptop keyboard.

Sir,
Make sure no viruses in ur computer.Pls put licenced antivirus and scan it.

did you tried to clean the inside of the keyboard coz sometimes the dust is the cause why some characters not working properly.

This is a problem of Virus attack to your PC you can install an antivirus software and scan your pc for viruses

i had that problem once
right under the space bar on some dells
there is a ribbon cable that plugs the mousepad into the motherboard
its just a small clip must be checked

Sounds like your internal mouse maybe be malfunctioning and due to the pressure on the spacebar is causing the erratic movement.

To fix this you can enter your BIOS with the F2 key at startup.

Continue through until you find some input options to disable the internal mouse.

I had the same problem on the Logitech MX3200 wireless keyboad. I simply unplugged my receiver from the USB port and plugged it back in. It's not the first time I've had this happen

If it skips at the same place or skips every 10 or 12 spaces all the time it is a broken tooth on the escapement wheel or rack. It could be in typing you are lingering on the key causing it to spring back a little ans space over.

I had this problem and solved it in minutes by downloading and installing a neat little freeware program called TouchFreeze. Google it and give it a try. --Erik E./Brooklyn