Very specific CTD

I'm experiencing a very specific CTD. I haven't had CTDs since I upgraded my RAM to 2gig until now, and this particular CTD has repeated each time.

I'm running GWX 2 with no other mods other than those included with GWX except for U-Boat 1.2, and am loading the game using SH3Commander and SH3Weather. I haven't had any problems at all loading, running, playing or saving except for this one particular instance.

I started a new career: 7th/13th Flotilla, starting 1 Sept. 1944 (I wanted to see what it was like running late in the war . . . ::shudders:: . . . EGADS!!). Using SH3Commander I selected the VIIC/42. I did no upgrades prior to the first patrol, except for filling out my crew.

Leaving Trondheim (and being given a beautiful send-off by Allied bombers :p ) I experience no problems until I just clear out into open water. Then, each time, at about the same position and date/time, I CTD. It seems, in the fleeting moment before crashing, as if something is spawning in my immediate area, and that the spawning is what triggers the CTD. I've reloaded and replayed this five times, and it's CTDed exactly the same each time.

I've tried searching to see if there have been prior posts/issues with the VIIC/42 but have come up empty. I'm just wondering f anyone has some ideers what the weasel in the henhouse might be.