I installed the gart drivers even though it didn't list my SiS 730S chipset in the supported list. It doesn't seem to have caused any problems but doesn't seem to have helped either. Everest is still saying supported modes are 1x and 2x. The PCChips website does say though that it should support 4x. I have also in the meantime updated the motherboard drivers.
You are right to say that my options in the BIOS are limited. The only AGP options I can find are to specify the primary graphics adapter (PCI or AGP). I could update the BIOS I suppose but I have always been very nervous of doing this given the possibility of turning my computer into scrap metal.
Unless you think this is worthwhile I will hold off on doing so (don't worry that I will try to hold you accountable if you advise me to do it and it all goes horribly wrong! The final choice is mine
I am beginning to lose patience with all this and I am thinking of reverting to plan B - I have some money coming to me soon and had a plan to build something really nice from scratch - dual core processor - dual graphics cards - dual monitors.
I would add a ton of disk space to my old machine and use it as a server - minimal graphics requirement! I am worried a little worried though that the old spec (IDI) might slow the network down against a new super-machine.
On the subject of dual graphics cards - when I last read up on it the jury was still out on Crossfire vs SLI. Opinion was that Crossfire might come out on top and I liked that you wouldn't need matched cards. At that point there were very few Crossfire motherboards out.
I live in Switzerland now and finding english langauge computer magazines is near impossible. I need to sort out an international subscription to a mag (probably MicroMart) but wondered in the meantime if you had an opinion you would like to share with me? As for my choice of processor - AMD is a given. Money will not be a issue (within reason!)
Once again thanks for all your help even if the problem doesn't get resolved.
I really appreciate that there are so many experts out there willing to give their time to help.