If I select air groups at Manado (south of Philippines) and select a transport group, or filter for TR, after a few seconds I get a CTD. This was happening on the previous release version, it also happens after updating to 1.06, and playing out the turn does not help - the issue is present the next turn. Since I have almost all my transport assets and several thousand planes there it is a bit of a game finisher

I am running on Win7 x64, brand new core i7-2600k, 8Gb Ram. I just upgraded from a Q6600, and the bug was present on that machine so it is not an issue with the new build.
Any help much appreciated as it is rather demoralising to think that after all this time I won't get to finish this game....