Hi Xander117,
You should do a boot time scan with avast!
(In Win 98 this is not possible- boot into safe mode before scanning- hit F8 while booting.)
Right click the avast! globe and select Start avast! Antivirus.
avast! will do a memory scan: if it finds malware in memory, it will prompt you to do a boot time scan: accept this and reboot.
If avast! doesn't find anything in memory, schedule a boot time scan. (Click the button at the top left of the avast! silver console and select Schedule boot time scan from the drop-down menu.)
If you haven't done so already, it would also be a good idea to download and run Ad-Aware and Spybot Search & Destroy to look for any spyware on your system.
http://www.lavasoft.de/http://www.safer-networking.org/en/download/Be sure to update both programs before running. Run both programs in safe mode- tap F8 while booting.
