In the above link, you will find guide on how to use the Dell Diagnostic. Try to use it by running the keyboard test.
If there's any error, note it. Call Dell support and provide the error code.
I have a Dell Inspiron 1501. My mouse and keypad started to go clicking as soon as I start moving the mouse! Is this a virus/trojan, etc. Previuosly I encounted problems with the NmLk key which activated and desactivated while writing. I have run many antivirus and doesn;t detect any problem. Please help!
Thank you very much
This one tip will help you sleep better tonight
A few seconds are all you need to get a better night's rest.