About a moth ago, both the keyboard and mose ports on my PC inexplicaby stopped working. At the time, I did everything I could, a far as to force a system restore from weeks ago in an effort to restore the bios. In the end, I put it down to hardware failure, and switched to USB instead. This has worked fine up until now, but this morning my keybord, which is only about three weeks old, suddenly started scrambling my keys together.
For example, typing in derek the cat through on-screen produces just that, but my keyboard types this: "dcerek,= the dcaz`t". I've taken care of the new keyboard, and it hasn't been dropped or had anything poured over it. The drivers are all up to date, and the USB ports i've tried it in, and the plug itself are as clean as a whistle. Only thing I can figure so far is tha it must be dodgey hardware, and that the keyboad's brain's broken. It's a PC Line SK1 if it's any help.

Welcome to the site.

Strange one that...I would recommend borrowing another keyboard to test. Let us know the results.

Might there be something underneath the keys? Try prying some off to see if there's anything under there.