PC Pitstop question

I sometimes use PC Pitstop's online virus scanner, and today found something I'm not sure about and was wondering if anyone could shed any light on this.
Basically, all I wanted to check was the "My Documents" folder, so I clicked on Custom Scan, selected the folder, and checked the option for scanning subfolders. There's about 1600 or so files in the folder (inc. all subfolders etc).
Anyway, the scan took ages to run - after about 25 mins or so my dial-up connection disconnected. The thing I found strange was that, apart from the slow running of the scan, it had checked over 2000 files before I stopped the scan - more than were in the folder!
Any particular reason for this, & more importantly, any need to be worried? TIA for any responses.

Dazza.

If you have an A-V installed on your system, did you disable it before running PC-P's? Any chance you have 400 hidden files in that folder?

My guess is there is a bug in PC-P's scan or their signature file was garbled when downloading, or you clicked the wrong folder, etc. It doesn't sound like a virus symptom.

Try one of the other on-line scans like:

http://housecall.antivirus.com/

Thanks Jerry - really appreciated.

Dazza.