Is there any particular reason that the CUDA miner would only perform at maximum khash/s if its CLI status window were the foreground window? I'm seeing consistent drops from 16000khash/s to 6000-9000 khash/s when the window is not in the foreground, even if absolutely nothing is happening in whatever window is the foreground (even away from the computer).

System: Windows 7 Enterprise 32 bit, 2.9ghz Core2Duo, Geforce 9600GT, 3gb RAM.

Is there any way around this behavior? It poses problems for the time when I'm not actively using the computer, as if anything at all pops up in, say, the first hour of a six hour run, I lose quite a lot of potential khashes.

Also, is 16mhash about right for a 9600gt? I tried playing with the aggression parameter, but it only lagged the rest of the system more, it didn't increase max khash/s while foregrounded. Anything else I can do to bump performance up?