This game does whatever it wants

OK, frustration and disallusion. Started my first patrol and evreything went well. Zered in on my first convoy, sank four ships including a destroyer, only received credit for three. Took quite a beating and recieved dammage to both prepellor shafts which reduced both my under water and surface speed. I have injured crewman and I complete my patrol area. I figure I'd head to Guam for a refit. As I exit the area I receive a message giving me another patrol area. OK, after my refit and repairs I'll be up to the remainder of the patrol.

I refit at Guam and everything looks good, full torp load and the damage repaired. As soon as I leave the refit area of Guam all the damage is back. Sure I have a full load of torpedos but I can only make 11KT on the surface and 4Kt submerged.

I'm thinking I have a less than capable boat and many men's lives to think about. Back to Brisbane (my home port) I go and when I get there I cannot dock.

I'm stuck in this bloody patrol forever! And I'm pissed about it!!!

Has anyone else had simular experience?