Claymore there is some issue with the version 9 & 9.1 (I mentioned earlier also) I have been testing your miners in several different conditions.
I also mine with my CPUs with your CPU miner (with only 3 threads out of 4 on my i5). So when I use version 6.1 there is no issue with any of my rigs for days, but when I use 9 or 9.1 along with CPU miner, the GPU miner crashes in less than 12 hours most of the time. Also, I must run the GPU miner first & then CPU miner. If I run CPU miner first & GPU miner later, the system crashes in no time. If I run only GPU miner with version 9 & above, usually it works stable without any such issue. Actually I noticed that most of the time GPU miner crashes because CPU miner is already running & GPU miner starts to restart the mining process (through watchdog).

System config for all 5 rigs :: Win 8.1 Pro + 13.2 Catalyst with 8 GB RAM, 4x 290 Trix + Core i5 4670.