Last year I finally got to the stage where I thought a problem could be repeated most times. Whn the laptop was restarting (e.g. after applying Windows fixes) it would often "die". This wasn't complete - but the bootup would take 20-30 minutes and often not work. I'd often pack up and we'd go home - where it started. I had the machine tested for a week and a half - no faults. We tried to power box, network cables, etc. Couldn't figure it out.

This year we've been working at home - with no problems. So obviously something's wrong with the power supply at the office. Except this weekend we finally got an office going at home in what used to be a bedroom. And guess what - the same problem starting up today. It wasn't even a restart - just starting from cold (not that it's overly cold).

So I've now got a problem - who do I ask to check this out? There's no point taking the machine elsewhere - been there, done that, got the t-shirt. The machine's been fine for three months in the dining room. But now it's in an office we finally cleared out of other stuff, we've experienced the problem again.

If anyone has any ideas on what this might be, I'd appreciate your thoughts.