Yeah I think it often is difficult for me to think clearly when my mind gets caught in the "this interesting puzzle needs to be solved!"

And part of the mind trap is the feeling of "I suspect there is one little error somewhere, which causes all of the trouble. Once I spot the problem I can get everything fixed", so I just keep on hunting the bug. Well, but with this forum upgrade the trouble was probably a combination of several factors. Trying to get them fixed I learnt a lot. And, luckily, I didn't feel too exhausted today after work, so I did what would have been wise to do earlier; I restored a backup and got the forums and wiki up and running again =)