@InqBit Just seems like the file is corrupted. Does it match the one on gibhub? Can you try downloading it again? You will need to 32bit CUDA SDK, or at least cudart32_50.dll if that isn't included in the 64bit version. I hadn't built 64bit, as there were 3rd party dependencies, but I might try and them them later.
@psychocoder Seems there are some other ways around the time-out issue:
1) As you say, change grid values
2) Unplug the monitor from the card... assuming you aren't using it

3) Change registry settings to increase the time-out. See
http://msdn.microsoft.com/en-us/library/windows/hardware/ff569918(v=vs.85).aspx. Perhaps only for the hardcore and if it's going to make a significant difference.
Were the 22.3-22.9 values you got on your GT555M in Windows what you expected? Is it the same as Unix?