Hi aarons3

Have you tried a boot time scan with avast!? Right click the scanner screen, select ‘schedule a boot time scan’ and reboot when requested.

Have you tried some rootkit scanners:

http://www.f-secure.com/blacklight/
http://www.grisoft.com/doc/download-free-anti-rootkit/us/crp/0

Have you tried the usual free anti-Trojan scanners?-

AVG Anti-spyware (requires Win2k/XP):

http://www.ewido.net/en/product/

a-Squared Free:

http://www.emsisoft.com/en/software/free/

Ad-Aware:

http://www.download.com/3000-2144-10045910.html

Spybot Search & Destroy:

http://www.safer-networking.org/en/download/index.html

If you have or none of this helps, please post a HijackThis! log:

http://www.bleepingcomputer.com/tutorials/tutorial42.html