so far 1.6.4 fixes the hanging idle miner problem, also getting low rejection, will report back in a day or two.

PS: getting two disconnection/miner is idle message(sapphire ati radeon hd 6850/bitcoins.lc)
PS: getting disconnection/miner idle message more frequently now, but never goes down to 0 hash/s, will report later.
PS: getting alot disconnection/miner idle message, went down to 0 hash/s and stayed there, going back to 1.6.2