Folks. Pleasure to meet you all. I'm new to this Forum so please be gentle! :blush: Really odd this one. My PC is switched off overnight (and yes I know there's much debate on whether they should be left on constantly!) but when we switch it on in the morning it resets several times. Windows will load, we'll go to log in and it resets as though one of us has pressed the reset button on the case. When windows re-starts we get an error report dialogue which states we had suffered from a blue screen error. We didn't! Once the machine has been on for 10 minutes or so it's fine. No resets and no crashes. :approve: So I'm guessing that it's happening until the computer warms up. Question is, WHY?! Any ideas would be HUGELY appreciated. KD.