@ shak ... locate your version of C:\Windows\system32\ati2sgav.exe
Upload it to Jotti's malware scan
and have it scanned.
Verify where it is located on your hard drive, as this will ensure it is not spyware or adware simply placed elsewhere on your computer, and using the same name ati2sgav.exe in an attempt to fool you.... it could be corrupt (if you use utorrent.com)
or a "Virtumonde" file. Either way, it needs to be fixed.