Temporarily I created an app to auto-close any ccminer*.exe dialog window pop-ups, then the batchfile continues to auto-restarts the mining.
Last night it crashes twice for about 5hrs difference.
But too bad I can't do anything about the GPU idles (SICK?).
When a card goes idle or errors out for me usually just restarting the miner will not bring the card back up to full speed (usually just 10Khash/s or something like that).
You can reset the cards from the command line (using the DevCon [Developers Console] command available at
http://support.microsoft.com/kb/311272) by disabling and enabling them again without restarting windows and it seems to always fix the problem for me.
first run 'DevCon find *' to list out all your hardware, and then find a unique part of the card ID to add to the command.
In my case '*dev_1380' identifies all my MSI 750 ti cards at once.
Quick and easy to add to your .bat loop.
devcon disable *dev_1380
devcon enable *dev_1380
Hope that helps!