Yesterday, we released Service Pack 2 (SP2) for Visio 2007. You can download and install it from:
http://www.microsoft.com/downloads/details.aspx?displaylang=en&FamilyID=78e36742-8bda-471e-88e6-9b561bb06258
Among the issues we've addressed in SP2 are these:
In addition, SP2 provides these new capabilities: