Graphics is an Nvidia Go7900 card with its own memory and the drivers were updated a month or so ago. (This is a laptop by the way)

I did the full install from the USB drive (Option 4)

Sound card is "General MIDI Instrument Misc." and I have "Use VST/DXi" selected I also installed the Roland VST stuff

Before posting I made sure it was a solid problem and only BIAB was affected. It seemed perfectly repeatable as described and only happened with BIAB. I then started shutting stuff down for a reboot (I guess I should have done that too) and shutting down Outlook removed the stuck hi-light. Now everything seems to be working including Outlook (and still no reboot).

So I have no idea what happened.

So for now the problem seems to have fixed itself.

Andy