first of all I'd like to clarify that my problem concerns the file browser, not the "Internet Explorer".
When I click on the + symbol in the left panel of "Windows Explorer" to expand folders tree, "Windows Explorer" stays hanging for many seconds before showing the subfolders. Besides, when I click on a folder in the left panel it takes a long time to show in the right panel the files in it.
My OS: XP Pro, Ver 2002, SP3
I scanned the system with Symantec/AVG/SpyBot/AntiMalware and cleaned all the malware but the problem remains.
So, I suspect malware is not the cause of the problem.
Any suggestion is greatly appreciated.
Have a nice day