Is this a virus?

Recently I downloaded a virus from Limewire. I downloaded avast! antivirus, updated the database and ran it. I found Win32 trojan, and a few other things, and deleted them. The problem was that when I would open IE, my homepage would open, along with another page that would open by itself. It went from an ebay search of fishing rods to a blog site. When I ran the software last night, everything was running smoothly. This morning, it's acting up again. I ran the software and didn't find anything. What could this be, and how can I remove it?

Is this a virus?mcaffee

This is not a problem at all. Here's what you need to do.

1st, don't waste your time with AVG, true sword, spybot, ad aware, CA, spyhunter, superantispyware, avast, panda, kaspersky, spyware blaster, bitdefender, spyware guard, windows defender or anything of the sort. Stay away from anything that is FREE when it comes to spyware and antivirus. There is a reason why they free. They are NOT good.

2nd, You need some of the best software out there. Norton Systemworks is very good. That's the only good software from Norton. I wouldn't recommend Norton Internet security, its not that great. Now the best software you should get is Webroot AntiVirus With AntiSpyware %26 Firewall, formally known as Webroot's Spysweeper with Anti-virus, this software is too good and gets better everyday. This is Elite software. It blocks over 455,000 definition threats, which contain multiple fringerprints with each(you can do the math). No other software can compete with that or come close for that matter. It catches everything: viruses, spyware, adware, malware, root kits, keyloggers, trojans, worms, and anything else. It also has active shields and a Firewall which learns from your useage. I've used them all and it is 2nd to none.