Yeah I forgot about the Spilling stuff on your Keyboard. I forgot that is how alot of people mess up there Computer.

Wikkid I would recommend that you get yourself a couple good Programs like.

Registry Prot. http://www.diamondcs.com.au
AntiVir. I don't have a link for this one but it is easy to get.
Now...
I also recommend that you get.
TDS-3 good Trojan finding program.

I got a little link for all types of links. For security.
http://www.oldgoat.org.uk/compu/links.htm

That should help you.

Yeah try booting up in Safe mode, and see what happens.