"Listener for "MinerJoe": btcguild.com:8332 21/04/2013 15:28:21, warning: job finished, 0:0:Barts is idle" -- is the GPU overheating? Do you have it overclocked at all?
I've found that I can mine TRC pretty effectively while gaming, but BTC/LTC/etc aren't possible unless the intensity is way down, and it's not worth it at that point