AutoCAD Architecture

[#1]

Homer, just be sure that all of your client computers have EVERY win 7 update installed, including SP1 and anything since. We had issues at first with ACA2012 but found most went away once computers were updated.

[#2]

Homer, that was worth a try. I turned off the preview pane in explorer and ran some tests but still get the 'file is in use' error message...I also have the box unchecked that opens the DWF in design review, so nothing is even opening the DWF and still getting the 'in use' error.