I've spent most of the day installing and reinstalling Windows 7 and hunting down ever more obscure problems and solutions as to why it was just ending up at a blank screen with a mouse cursor. Only when I left it alone and it went into standby did I think to re-check the TV (which acts as a second monitor) only to discover the login screen sat there waiting for me... *sigh*.
Unfortunately illness meant I missed going to my friends' house for a BBQ, which was gutting.
Still, it's finished installing now, and there's always tomorrow. I'll go to bed early and get a good night's sleep :)