Mike Wall, a very bright guy from AMD, just forwarded this to me. I figured it couldn't hurt to put it here:
If anyone has an Athlon 64 Emachines M6805, M6809, M6811 notebook and you're running 64-bit Windows, here is how to get the ATI graphic driver to work properly:
http://www.notebookforums.com/showthread.php?t=74785 (thanks to an AMD Forum user for posting the link)
I used this procedure with the brand new Catalyst 5.7 x64 driver from the ATI web site, and it works great! After patching the .inf file and installing the driver, I could then install the Control Panel (note: that's Control Panel, not Catalyst Control Center) and it enabled PowerPlay, SmartGart, and the other ATI features. And the notebook now supports the native 1280x800 rez, and it gets all the nice performance enhancements and bug fixes ATI implemented in the latest driver.
FINALLY a fully working graphic driver for this fine notebook!