Hello. I have a problem regarding Windows XP Proffesional (SP2) - with it's explorer to be more precise ("explorer.exe" program).

I'm typing this message via some other computer because I don't have Internet on the computer with the problem I'm talking about at all (don't have a telephone line, but I'm planing to use cablenet), the point being: I can't send an error message to the Microsoft!

Problem:
As soon as the operating system loads-up, the error message appears - saying that something's wrong with "explorer.exe" program.
When I close that error window everything seems normal, but when I try to open something on Desktop (or do anything on it - as a matter of fact) it show's that same old message again (and again (when I try to do something), and again, and again - until it finaly "clogs-up", and pauses).
Latter on, a sand-clock appears as a cursor and it stays that way - I can move it, but everything on Desktop is freezed (can't even select an icon).

I tried Norton SystemWorks 2005, and it's WinDoctor doesn't fix the above mentioned problem (it finds some others and fixes it, but it doesn't repair the main problem).

I can, however, browse hard drives using (e.g.) TotalCommander (when freshly restarted), I can run most of the programs using such method...

The same problem apperas when Logged-on as User or as Administrator; it appears in "Safe Mode" too (identical symptoms - always). I have a HyperThreading processor - maybe it's some problem in connection with it? Help! I'm kind-of short on time - I need my computer to do some work, and I need a solution as quick as possible...

Obviously it (the problem) has to do with "Explorer.exe" itself, but what is the solution? (and - don't say "reinstalling the operating system", only selectively applicable solutions are wanted)

There are a few things you can do. First, to get rid of the error reporting:
Click Start.

Right-click My Computer, then click Properties.

Click the Advanced tab.

Click Error Reporting.

By default, error reporting is enabled. To disable it, click Disable error reporting. To continue to be notified when errors occur without being prompted to report the errors, click to select the But notify me when critical errors occur check box.

Now, for the real problem. To see if things are well in your computer, one thing you can do is run the System File Checker.
Click Start.

Click Run.

Type in "sfc /scannow". You will need your windows cd. If it finds nothing there, there's unfortunately not a whole lot more you can do without reinstalling. You could try to use System Restore, but that may or may not work. Good luck!