Two problems occur when updating between ACT and Outlook 2007, on VISTA.
1. Updating between ACT and Outlook 2007 works well one-way, Outlook to ACT. It usually does not work bi-directionally. It almost always fails one-way from ACT to Outlook. Therefore, the bug that forces a VBA applicaiton error appears to be on the ACT side.
2. When bi-directional updating between ACT and Outlook does work, anything task, call or meeting which has been previsouly updated, strips out any contacts on the ACT side.