Hi Patrick,
#1 I thought I upgraded the network drivers a few weeks ago when I went through the first troubleshooting steps with you, but I will check them an update them if necassary. All drivers and updates that are available via teh Sony support site are installed.
#2 I use G-DATA Internet Security software. I use it for a few years on various computers.
I concidered a clean install, but as I wrote before, I'm programming our registration system for our music and dance festival (www.rockthatswing.com). I'm already behind deadline. A clean install with all the necassary software and environment adjustments would cost me three days or more. I really don't have the time right now. I hope that I have another two or three weeks before the next crash series and that I can finish my work before—hoping not to loose much if the crash happens in teh middle of working as usual.
Cheers Marcus