Staggering mouse, potential trojan?

First off, Hello to everyone here at MajorGeeks, I'm a first time poster here.

Enough with the pleasantries, now to lay down the goods.


I bought a new PC about 3 months ago, it's an Acer laptop, and came with Windows Vista 32-bit pre-installed, as such I have no install disks (and never realised I should have created boot-disks.) Last week I downloaded and ran what was inevitabely a virus or trojan (long story of how and why, point is I'm now screwed) which has apparantly taken over my mouse. The system runs perfectly fine, same as usual - games work, videos run fine, it's just that the mouse appears to be 'lagging' accross the screen, as in, it moves about an inch at a time instead of fluently.

I asked a somewhat computer-savvy friend of mine, he had me download all kinds of spyware/virus cleaning programs, none of which solved the problem. In the end he told me that I could have a trojan that is taking screenshots constantly and sending them to the hacker, although not being the most up to date guy myself I have only his word on whether or not it's true. I tried un-installing (deleting) the mouse drivers, and being on Vista they're immediately re-installed upon rebooting. This of course has not fixed the problem either.


I hope from my severely un-techhy explanation somebody could give me a few pointers on any possible action I could take to save my PC, as I don't know how to re-install Windows without the CDs. If anymore information could be helpful please drop a post and I will try and respond to it immediately, as this is effectively my last shot at solving the problem myself, before I have to take it to the store and pay somebody to do it for me, and lose my beloved laptop for a couple of weeks

 

Here's an update!

I think I have found what the trojan is called, AVG found 2 trojans, as follows:

SHeur.BBVJ
BHO.DKD

I tried looking for anything through google but couldn't find anything at all.

 

Thanks a lot Halo, I shall jump straight on it tonight once I get home and see how it turns out!