Okay, it sounds like you have a virus or adware that hijacked your browser. First of all, if you're using Internet Explorer, stop. Get Firefox.
If you don't have anti-virus software, download AVG from grisoft.com and have it do a full-system scan.
Download Ad-Aware from download.com and have it do a full-system scan.
Download Spybot Search & Destroy from download.com and have it do a full scan.
When you're done with all that, if you still have problems it might be time for a manual cleanup, but that's a really elaborate process. Try those things first.
Updated On: 10/1/06 at 04:11 PM