A couple of weeks ago when I started my computer (Windows XP Pro) a popup appeared, without me going on the internet. In the title bar it said http:// morze . cafreedom . com, and the popup was saying I might have spyware and to click a link to begin scanning - as if I'd click it!
Anyway I ran Ad-Aware and it found a few items, but the one that stood out was VX2 and was categorised as MalWare. It couldn't delete the file vgz.dll, so I had to delete it via the command prompt. Doing this closed all Explorer and Internet Explorer windows, which presumably is because it was running/using Explorer. It actually restarted explorer completely, so everything disappeared for a moment.
Having got rid of it, I had no problems... until the next time. It keeps coming back, sometimes when I'm logged on, other times when I've restarted... I can't see when it's coming back - just seems random.
I haven't been on any dodgy sites, so I can only assume that there's another file other than vgz.dll still on my hard disk somewhere that Ad-Aware, Spybot and AVG won't detect.