If anybody notices their miners idling a lot or returning error messages, please let us know at the support email address; a few IPs out there are running up against our request rate limits, and we'd like to work with you to get you full access. Thanks!
Why not create a whiltelist system, like slush?
EDIT: the stale thing is weird. I get amazing stale count, but suddenly I get like a burst of stales, for example this just happened:
pool.bitp.it:8334 13/07/2011 21:49:35, 15e344e4, accepted
pool.bitp.it:8334 13/07/2011 21:49:35, 6a9587b6, accepted
pool.bitp.it:8334 13/07/2011 21:49:38, 3fa0e6a4, accepted
pool.bitp.it:8334 13/07/2011 21:49:48, d228fc62, _rejected_
pool.bitp.it:8334 13/07/2011 21:49:53, 39d74dee, _rejected_
pool.bitp.it:8334 13/07/2011 21:49:56, 400c5ad2, _rejected_
pool.bitp.it:8334 13/07/2011 21:49:58, e044bf7e, _rejected_
pool.bitp.it:8334 13/07/2011 21:50:07, 658b753c, _rejected_
pool.bitp.it:8334 13/07/2011 21:50:17, 0608dbdc, accepted
pool.bitp.it:8334 13/07/2011 21:50:33, 957bcb54, accepted
pool.bitp.it:8334 13/07/2011 21:50:42, 67c6fe07, accepted
It happens in random cards and only in this pool.
Except for this "bursts" of stales the stale count is amazing.