To answer in detail:
ICQ is closed down and I do not run Messenger.
I usualy have 2 0r 3 windows open, but it does not make any difference, even, if only one is open the same thing is happening. I mostly use Netscape, because it is faster, but Explorer is the same. Until now, it was operating perfectly. I uninstalled and reinstalled Java and even run the descrambling.
I have 256MB SDRAM
I have Pentium 4. 1.6 GHz, Windows XP
No, did not use scan lately. Thanks for your input. Nick