Hi, pdavg
What you'll want to do is take a look in your installation folder (usually C:\Program Files\VoiceAttack) and see if there is a VoiceAttackFault.txt in there. If there is not a fault file in that folder, look in %APPDATA%\VoiceAttack.
If you locate that file, take a look at the last set of entries at the end, which will have a date close to when VoiceAttack had crashed. See if that sheds any light on what might be going on. If you are not able to make sense out of what you are reading, upload your fault file here and I'll take a look at it for you.