Adam Bower wrote:
It sounds like control characters are getting written to the console or something? try booting it in single user mode and see if it lets you login then?
OK, thanks for all the comments on this - turns out it is a hardware problem; bios is all screwed up too - graphics card, maybe, or a BUS thing. I'll have to try and get my hands on some other bits when i'm back. Perhaps leaving it running overnight caused bad connections to loosen further if they warmed up. The errorlog postgres thing must be a coincidental error causing a red herring . Jenny.