Ok, didn't experience this until I installed the "release version" of ah2, i'd been running beta patched up. I uninstalled, reinstalled, still started off using like 50 of the 64 megs memory then filled up.
To try and fix another problem I had (joystick) i uninstalled, then reinstalled from Beta 33 up (since those files are saved in your directory) and the 'leak' hasn't happened in 2 days.
So, question, are those experiencing the leak running the full 80 meg "release" version or beta version patched up?
Maybe can help track it down if more can test this too.