Malicious program affecting Internet Explorer. I can't change sites. If I change sites, it stays there for 1or 2 seconds, then jumps back to the previous site. OS is XP SP2. This happened with IE 6.0. It is impossible to download any programs because the site jumps back. I was able to install IE 7.0 because the computer manufacturer's Help Panel worked without me having to access Microsoft's Update site directly. I have run Spyware Doctor and it found malicous programs but removing them did not fix the problem. I have 2 computers so I can download and install programs that do not require the host computer to perform the download.