A few days ago he noticed that occasionally a small white square appeared right under the cursor. The square is about the size of the cursor itself but obviously a different shape. He also noticed that in his google toolbar, the part where you are supposed to type in your search, there is also a box lining the inside of the area where you type. His computer was a bit slow and it has gone a little faster but it is still slow. I am not sure if he noticed this using any other programs but when i went and looked at it, he was using Mozilla Firefox. He is concerened he has a virus, that is why i am on here consulting experts lol. Also his anti-virus scans at 3:30am each morning. It normally takes 20 minutes to do a certain number of files. Well when he checked this two days ago, it was the same number of files but it took an hour and a half to complete.
If anyone has any idea what is going on that would be great.