We are glad to inform you of the following actions taken to solve your problems on Vista 64-bit:
1. There are no VirtualPC setup at the moment that can handle Vista 64-bit requirements.
2. We ordered special hardware, it will be available and installed by our Admin team next week so we will be able to test/solve Vista 64-bit issues ASAP.
3. There are special cases of this behavior observed even on WinXP, so we will double check our positioning logic for the shaped form also.
All the best,