Why does my laptop computer automatically write "ccc" and "bbb"?

Question

I have Toshiba Sattelite L300 laptop which automatically writes these letters "cccc" and "bbbb" (ONLY these two letters). I bought this laptop 11 months ago and it is still under 1-year basic guarantee that will expire within few weeks. Few months ago, I began to notice that frequently while I'm writing (whether in Microsoft Word, yahoo notepad, Google documents, or simply writing my ID's and passwrods online) and after finshing the sentence, sequences of c "ccc" and sometimes b "bbb" automatically written without pressing the letter keys. I thought that it was Windows problem, and so I ran Toshiba Recovery twice, and the problem remained. It could happen once everyday, and it could happen even more frequnetly (e.g. 5-50 times a day!). I was told that it must have been sticking keys on the keyboard causing the problem. I contacted Toshiba technical support who kindly replaced the keyboard and returned the laptop back to me. I was surprised that the problem was not sorted out. Someone on Yahoo Answers told me it might have been a virus. Therefore, I replaced my anti-virus with Avast! (free version), and downloaded 2 anti-spyware/malware (Spybot and Ad-Aware also free online) and scanned my computer. However, the problem is still there, coming and going, and sometimes very frequent to the extent that when the curser is at any place whether online or in Word, it writes big number of C's "cccccccc" and sometimes "bbbb". The noticeable thing is that never any other letter is automatically written! Just these 2 letters (b and c). The only thing that happended to this laptop few month ago is that my 2-year child stood upon it while it was closed and I don't know whether this had anything to do with this writing problem. The problem is terrible because MOST of what I do on my laptop is writing...What do you think? Has anybody gone through this painful, hateful experience? Any suggestions? I really hate this to happen, especially because I'm writing my PhD thesis and I don't want to be obsessed with reviewing every single paragraph in case that this might have happened...Serious and/or expert answers please! Thanks so much in advance.

Answer 1

Bet you didn't mention to the Toshiba folks that your child stood on the laptop.  It's probable that the chassis has been deformed sufficiently to cause the problem, regardless of a new keyboard.  The problem, as you describe it, is intermittent, so it's not likely to be found by Toshiba during replacement of the keyboard.
Since the warranty doesn't cover abuse, about all you can do is bite the bullet and buy another laptop.  Perhaps one of the Panasonic ToughBooks if you are going to leave it where your offspring can stand on it again. <grin>