December 3, 2011 12:44
It could be a memory leak in the driver itself, that over time it just kills the mac. You might be able to use Activity Monitor and look at the memory allocations over time to see if that's the case. I'm not sure if the driver will show up as a distinct process, though. Have you tried contacting the driver manufacturer to see if they know of any issue with long-term (in your case, 24 hours) stability?
I wonder too if after 24 hours something rolls over in the driver and causes it to lock up.
I wonder too if after 24 hours something rolls over in the driver and causes it to lock up.