Update 8790 is out.
This update should fix the keyboard troubles some people are having.
It also includes a new math library that should use your CPU better.
This does mean however that a pentium 4 is now the minimum processor for this game.
Should the game crash with an EXCEPTION_ACCESS_VIOLATION while it ran fine before this update, then contact me with a private message and tell me your CPU type, i’ll try to include support for your specific cpu.