it can't hurt to update your graphics driver....just make sure you go to the nvidia website to get the most current driver and not from anywhere else...nvidia has a driver identification tool somewhere on their site that can identify your card for you and select the proper driver
i don't think the graphics card is causing your network to slow down though
you could try to update your ethernet card drivers as well
however....just because your AV isn't telling you you've got a virus doesn't mean you don't
Please read the
Malware/Spyware cleaning guide here follow the instructions at the top....
That will give you several steps that will help you clean up 70 percent of all problems by yourself. If at the end of the process you are still having difficulty (and you may not be) then post an OTL log in
THE MALWARE FORUM forum.
(Posting OTL logs or ANY other logs requested in the malware/spyware cleaning guide in any other forum other than the malware forum is forbidden. If you post any of these logs in any other forum, it will be removed and it will take you longer to get help, so please make sure you only post logs in the malware forum)If you are still having problems after getting a clean bill of health from the malware expert, please return to
this thread..