I've a quick question: I have 6 rigs (8 Ghash per sec) and I'm solo mining. Is it a problem if I reboot my rigs 2 times a day, I mean, when my miners have to start over after each reboot, would that be bad for finding new blocks?
Mining is like flipping 50 coins trying to get them all to come up heads. You just have to keep flipping. You never make any progress you could lose. I've noticed that mining programs do need some time to "come up to speed", but it's usually just a second or two. All you've lost is the time it took your computer to reboot, launch the mining program, and come up to speed.