drragostea has it right
just think of wild tangent as a SYMPTOM
you may or may not have a Disease
IF you have a disease- What is it?

round up the usual suspects
not to get paranoid but a safemode scan with spybot and immunize
full scan with your AV
secunia advisor and get everything up to date
spyware blaster
see the stickies on How did I get Infected- etc