I seem to have a similar problem as posted here:
Taskbar changes to a light beige colour, lose sound, when browsing get frequently redirected to wrong sites, my printer drivers were suddenly deleted.
I have run Ad-aware, spyware doctor and Avira but they fail to find anything serious.
HIJack this produces a list of files but I don't know what to do with them.
I tried to download AVG but couldn't due to conflict with Zonealarm.
I'd really appreciate some help with this if anyone has any ideas.