My brother told me about that. You think that`s what it is?? How can ads screw up your boot system though?
Ads can place spyware, key loggers & other malicious cookies that infest your system. Some of them can cause numerous pop-ups that are difficult to control.
Ad-aware, Spybot and Hijack-this are free programs that will help you control these things - but be very careful about Hijack this because it will let you delete things you don't want to delete. You have to know what it is that you're removing from your system.