Ok, so here's what I did yesterday...
- Re-Installed WinXP, downloaded/installed all updates for it, installed my soundcard, installed my video card (drivers from the CD), installed FS2004, ran FS2004 -> system hangs after a few minutes
- Installed newer drivers from Gainward's website, downloaded and installed new drivers for my soundcard, ran FS2004 -> no change, system still freezes after a few minutes
- Decided to try something else, so I dug out one of my WinXP Home CDs - installed that, downloaded/installed all updates for it, installed my soundcard (with the newer, downloaded drivers), installed my video card (drivers from Gainward's website), installed FS2004, ran FS2004 -> system hangs after a few minutes
- Now I thought, why not try drivers directly from NVidia (incidentally, I saw that you, Dan2002, suggested the same thing a few moments back) - downloaded them, installed them, no improvement - system freezes again.
- Now I thought, why not try out if the problem isn't software related, but hardware related - after all, everytime the system froze up, I heard a small beep from the loudspeakers, so I thought, why not try the whole thing without the (on-board-)soundcard activated... no change, problem remains.
- So I reactivated the soundcard and took out the AVM FritzCardPCI (ISDN-Adapter, which I use to send faxes - since I use DSL for internet access)... started FS2004, flew FRA-HAJ and HAJ-CPH without any problems...
- So this morning I once again installed WinXP Pro, still without the ISDN-card in my PC, downloaded/installed all updates (am I glad that I've got a 3mbit DSL line and that I don't have to pay per Mega- or Gigabyte but pay a flat fee per month... ), installed the video- and sound-drivers that I had downloaded yesterday, installed FS2004, ran it, flew CPH-PMI without any problems whatsoever.
I'm not celebrating yet, but it seems the ISDN card was the problem - I certainly hope it was, because not being able to use it really isn't that much of a problem for me (I can always use the USB-ISDN-adapter that I've got here, or I can simply send my faxes from another computer).
I'm now slowly adding the other programs that I use on that PC
(Anti Virus, MS
Office, ...) but since that PC
is really mainly for playing, I'd be able to simply throw out any programs causing problems.
Thanks for all the ideas and help guys - thank goodness, the problem now seems solved!
P.S.: Dan2002, I've had a look at MS
's website - they've got DX9c released over here, but for some reason you only get DX9b if you use the Windows-Update feature... maybe I'll try DX9c nonetheless... although - everything seems to be working now, so I'll probably wait before installing that...