I'd say that the crash bug happens 50% of the time. always after a game has finished.
Also, about the hot keys. I tried the CTRL plus a number to make groups. That worked fine. X also works for scattering the units. A lot of the other keys dont seem to work though. For example, in the settings it says that G is the 'Guard' hot key. To use it, i selected some units, pressed G, then clicked on a harvester that i wanted them to guard. Nothing happened though. Am i doing it wrong, or does the hot key not work?