probably so, i just installed the app nothing extra. did you optimize you system or anything? i know i have some sort of driver conflict with my motherboard and audio card but thats totally different than acid shutting down on me.
Can you disable the on board audio? sometimes there a jumper switch on the motherboard to disable it, or you might be able to do it through the bios. Failing that you might be able to disable it in the device manager.
Any conflicts like that are not a good thing and can cause trouble.
I didnt optimize my system.
Driver problems can cause all sorts of errors, even making software shut down.
Try updating audio drivers to newer versions too.
I am also running two audio cards although I only use one, I havent even disabled the other one but acid still works fine. Im running version 6 at the minute.
The only time acid has ever crashed on me is when a track is playing and I start to mess with the beatmapped tempo while its playing, that used to happen on my last pc, I think because it was too much processing at once.