I have tried the OEM drivers, the official AMD drivers, and the UnifL drivers, but there are some older games (e.g. PES5 or Operation Flashpoint) I've never gotten to run on the dedicated GPU rather than the Intel on-board graphics. I've tried a variety of tools including 3DAnalyze, RadeonPro, ATI Tray Tools and so on to spoof vendor/device IDs or change memory allocation size or whatever. Nothing had any effect at all. My BIOS doesn't have the option to switch to fixed mode, and there seems to be no hacked BIOS for my machine (PB EasyNote LS44HR-400GE) that I could flash. Did anyone ever have similar problems, and actually solved them?