1. I was not talking about BIOS, but about motherboard drivers.
2. You don't have an ATI mobility videocard, but an onboard card. That's why I asked about MB drivers, because your videocard is built in the MB chipset.
3. You should look for a driver on ATI's website.
http://www.ati.com/support/driver.html and select WinXP->Motherboard/IGPdrivers->IGP family.
As for overlay, go to Options->preferences->video->renderer. Try to swich among Modes.