Glad that it resolves your problem...but this is not, properly speaking, a solution...but rather a workaround: all applications, all emulators will loose benefits from hardware acceleration coming from your graphic card.
There's a big chance that this bug is caused by the graphic card driver (if you confirm that Framework 4 is installed and that your Window has receive all updates).
Would you have, by chance, another graphic card? I would be curious of what it would give with another card!!
One last thing: could you please install DirectX 9.0 and see if you can enable hardware acceleration?