I have downloaded and gotten to run CUDA 2.3 Driver, Toolkit and SDK. I did not see any profiler or debugger for this arrangement. I want to go through CUDA programs line by line and see how some of the examples work. Is there something in CUDA 2.2 that can help? Clearly there is no such thing in 64 bit CUDA 2.3, but maybe 64-bit CUDA 2.2 that will work on 64 bit CUDA 2.3. Is this a good idea?