Ive had this problem for quite a few years and have done quite a bit of research in the process. This computer acts up quite strangely when you hold any key on the keyboard. Even if you tap it the computer will pause and something consumes up to 100% of the CPU. The computer basically freezes up when you type. I have used AVG, Lavasoft Adaware, spybot, and quite a few other programs. I believe I used Norton to scan the computer but it did not come out with any results and my subscription was canceled. I attempted to research this problem online and it seemed that McAfee knew about a keyboard bug that had very similiar symptoms. If anyone is aware of this bug or defect PLEASE respond and help me. Thankyou very much.