With or without the "Zoom on roll with IntelliMouse" checked, Visio 2010 won't zoom in or out using the "CTRL+ mouse scroll" method.
I have Office 2007 installed and Visio 2010. I have an Access 2007 issue related to 2007 & 2010 both being installed. Could this be another related issue?
I'm using a logitech mouse, but this zoom method works for all other Office apps.
This is a huge pain when working on large flowcharts.