I am not sure what you call not responding. I mean yes my computer has frozen a bunch of times. Are you still able to move the mouse cursor?
I ask because I just tried it, and it does appear as if nothing is happening. Everything on the program is greyed out. I have 1/4 the patients you have, and it took over 2 1/2 minutes to download the .csv file. It may take you ten minutes to produce the file.
