Help withTrojans PLEASE!!

[jholland1964]

Ok, you still have a few items showing in the combofix log AND in the previous HJT log that you will need to fix.
Run HJT again and place a checkmark next to the following entries if they still remain;
O2 - BHO: (no name) - {1A6F8EE3-FF03-4C12-965E-A4ED9AC75E53} - C:\WINDOWS\system32\vtutt.dll (file missing)
O4 - HKLM\..\Run: [BM6fda5c05] Rundll32.exe "C:\WINDOWS\system32\snohpmup.dll",s
O20 - Winlogon Notify: gebcawx - gebcawx.dll (file missing)
O20 - Winlogon Notify: jkklijj - jkklijj.dll (file missing)
O20 - Winlogon Notify: oozcnxbn - oozcnxbn.dll (file missing)
O20 - Winlogon Notify: winbwd32 - winbwd32.dll (file missing)
Once you have placed the checkmarks then click the Fix Checked button.
Exit HJT.
Reboot the computer and run a new HJT scan, save the log and post back here with that.
Then we will work on the sound problem if this log looks good.

Other Devices, Multimedia Audio Devices it has that Yellow Question Mark.

Does this show you exactly WHAT this "other device" is...if so...who is manufacturer and what is it exactly?

[jim8uofa]

I attached the log. After I fixed what you suggested in HijackThis, I tried downloading the drivers from Dell.com again and this time it worked. My sound is back to normal and I have no other devices in device manager. Thank you so much for all your help. Do you have any suggestions on preventing this in the future? I have AVG Free Edition and Webroot Spy Sweeper that run on a regular bases, do I need anything else?