OK, just upgraded from RC1 to RC2 and installer picked up the right settings (ie. upgrade) but crashed during install of TV Server. I rebooted and re-launched the installer and only option was then fresh install. It only said the TV client needed installing so did that choosing the SQL database already installed option
Now I can not open TV config as I just get a lot of Gentle errors
Now I can not open TV config as I just get a lot of Gentle errors