Please wait for an experienced helper to recommend other cleaning programs. SDFix and Combofix should only be use with guidance.
Amanda, the HijackThis log shows that you are running both AVG and Kaspersky antivirus. Please decide which you want and uninstall the other.
O20 - AppInit_DLLs: C:\PROGRA~1\KASPER~1\KASPER~2\mzvkbd.dll,C:\PROGRA~1\KASPER~1\KASPER~2\mzvkbd3.dll,C:\PROGRA~1\KASPER~1\KASPER~2\adialhk.dll,C:\PROGRA~1\KASPER~1\KASPER~2\kloehk.dll,avgrsstx.dll
The KIS entries aren't correct, plus they are being followed by AVG. This may be the cause of the problem.
Please handle this. The try to run Superantispyware. IF there is still a problem, try to run it in Safe Mode. Rescan wit HijackThis when finished> include logs for both HJ and SAS.
SDFix doesn't work with Vista and so far, I don't see cause to run Combofix.