LOL....thanks Kiwi...
The other probelm I had was no numbers... didnt know it was a setting in TDW UIs that I had to turn on.
Its all good now... sank 32,000 tons on my first patrol

Had to return to port early (with 48% hull and 4 wounded officers) due to surfacing in the middle of a convoy, and I guess with OHII mod some merchant ships are ARMED in 1939

Needless to say I will be much more cautious in the future about surfacing.