Yeah one of my rigs on a GPU just lost connection getting IO errors and such. But my other Miner rig is connected. might be the block that rig was working on???
(edit)
Okay back and running now. u can go here also to see about connection problems.
https://bitcointalk.org/index.php?topic=1976.14300(edit)
Nop back down again with that one miner.