Hey all, I have a Power Mac G5 Dual 2.7GHz which has been recently playing up. Sometimes it boots with both processors but lately it's booting with only one. What tests/diagnostics can I carry out to see what the problem is? I *think* one of the processor may need to be reseated but I'm not sure I'm confident enough to try it and I don't want to pay Apple to do it just in case that's not the problem. Any ideas? Thanks in advance.