....I'd posted a similar problem a while back but now I can't find the thread, LOL.
Anyway, my problem was that I actually HAD the surface search radar then when I came back to port and was offered a new sub it didn't have the radar and I couldn't 'buy' it even with enough renknown!!! Extremely annoying. IIRC one of the responders said you could go into one of the config files and "force" the issue but I'm not sure.
Essentially I've given up upgrading to a new sub as I prefer to keep the radar etc I've earned.
