W2K: Icon inside the folder is corrupted

[1onexx]

When I open:

- My Computer
- My Network Places
- My Documents

I see this strange icon inside, with configuration "Enable Web content in folders".

http://img156.imageshack.us/my.php?image=screenshotew4.jpg

I don't have any virus or malware (tested with symantec , Spybot S&D, Ad Aware SE).
I think some dll is corrupted or some icon is missing or not found, but all work well.

My SO is W2K sp4 with all patches.

Can you help me ?

Thanks

 

[robin_bga]

That is obviously a virus problem.So think of scan with some antivirus.R

 

[1onexx]

It is not so obvious as it seems.
I have tested my PC with many antivirus like Symnatec, Kaspersky, AVG ...
and many spyware detector like Ad-aware, Spybot S&D, HijackThis ...
All virus signatures obviously updates.
My PC is clean and work well.
But the icon folder is corrupted.

Any idea ?
Please help me, thanks.