Just recently, the SIS Mirage 3 integrated graphics on the family desktop have been causing issues.
The computer FREEZES up at random intervals, and doesn't UNFREEZE if left a while.
It doesn't respond to the mouse or keyboard, and the display doesn't change either.
It also won't shut down, and has to be turned off by holding down the power button.
I checked the Event Viewer, and I have an entry titled SiS315 when it freezes, and another called SaveDump when it reboots or is turned back on, saying that sisgrv.dll was stuck in an infinite loop and to obtain updated drivers.
I updated the graphics drivers, but it didn't help.
I also tried setting the BIOS to fail-safe defaults, in case some video related setting was causing PROBLEMS, but it made no difference.
I found very little info on this error on the internet.
Does anyone have a SOLUTION, or some more info?
Specs: Foxconn K7S741GXMG-6L motherboard, 512Mb RAM, XP Pro, AMD Sempron 2400+ CPU.
Thanks in advance.
Calum.Onboard vid chips can get cranky but here's something you can try...
First check add/remove for any program related to the graphics chip itself.
Remove it.
Then through Device Manager find any and all references to the SiS ( there may be more than one ) and right clik and select remove.
Re- boot and re-install the drivers when prompted. The best drivers to use in this scenario are the ONES that would be on the MBoard CD if you still have it around...

Best of Luck.
Oops . . . kind of forgot about this thread, sorry.

We don't actually have the MBoard CD, we were never given it.
What I've done for now is reduce the 3D acceleration to the lowest level, and it hasn't crashed since.
Obviously this isn't a great solution, but a friend is sending over an AGP card for us, so we'll use that when it arrives and that should stop the crashing.
If it doesn't, I've persuaded them that they need a new, legal OS (yes, this is the same PC that was the subject of one of my very first threads here - check it out) or a new PC entirely.
They're happy to go for the legal OS first, and if it doesn't help or if there are other problems then they'll get the new PC, and they won't need to buy the OS as they'll have already bought one.

Thanks for the help anyway, maybe none of that would have been necessary if I'd seen it the first time round.