I've been fighting instabilities and apparent driver problems since assembling a new A7V133-based system last weekend. I was unable to run most games on my GeForce2 MX board using DirectX and OpenGL, I would get terrible crashes and have to reboot with the reset switch. The DOS box wouldn't come up as long as the sound card was installed. The system was very very unhappy. This morning in desparation I pulled out one strip of RAM, reducing my system memory to 512M. Now like magic everything works fine. I can swap that strip for one of the others and things still work fine, so it's not that the memory is bad. The only conclusion is that ME has a nasty nest of bugs associated with managing large amounts of memory. Avoid!