I am thinking about replacing my 9500GT with a Radeon version.
Do you think the 9500 had a problem that the 8500 didn't have?

I have Windows 7 Home Premium 64-bit, AMD Quad CPU, 8GB RAM, NVIDIA GeForce 9500GT display adaptor, dual monitors (both Planar PL1910M), Qimage Pro v2010.100.
Occasionally the monitors blank out.  Couple of times they stayed off for a few seconds and then came back on.  One time there was a message when it came on about the driver failing and being restored. This last time it did not come back on.  I had to press "Reset" button to restart the computer. A message appeared to "Repair Your Computer".  Startup Repair tests were all completed successfully.
NIVDIA driver is current.
Is there a Win7 version of Qimage?  64-bit version?

I spent 6 weeks getting my system completely usable like you did!