Here is the specs on the computer:
Processor AMD Turion (tm) 64 x2 mobile tech TL-56 1.80 GHZ
RAM 1 GB
32 bit
yes I am having the same error. I was just in the program not running a light show (just to try it out) and I was using the keypad on the computer and it ended up with that error within a couple of minutes. Sorry it took me a while to get back to you but I just had a chance to try it out again. Like I said befor if I use the mouse everything goes ok with my show. But I haven't really tried using the keypad during a show because I don't want this error to come up on me like that so that's why I tried it out now while I'm not working on a show and I went fast with the keypad then I got the error. Maybe it's to much for the system if you change a scene to fast? I don't know but any help you can get for me would be great. I really like this program it's easy to use but it really stinks when the program shuts down in the middle of a show just because the lights need to be changed a little fast.