I was starting to wonder when my systems seemed to quit generating coins if there was something going on. They went from about 1 block / day to none in a week.
ArtForz in irc suggested I run a test isolated net with two nodes only connected to each other with empty wallet dir. I took a couple of quad core systems and set them up. they have produced no blocks in about 90 minutes now while hashing at a combined rate of over 8000 khash/sec. Is this evidence of a problem yet or is it more bad luck?
The systems are Linux 64 bit one Intel quad q6600 and one AMD quad phenom II 940.