For all those that use DWF (and yes, I like PDF as well), I've downloaded the trial version of Autodesk Design Review and:
Exported a Revit 9.1 sheet to 2d DWF
Made comments in Design Review and saved the file
Go Back to Revit to complete the workflow, go to Link DWF Markup, select my dwf, and revit instantly crashes. 4 of 4 times so far.
I tried the same workflow in Desktop 2006 and it is working.
Has this happened to anyone else? I've read many posts from people who seem to be getting this to work.
P.S. It is not a multi-sheet DWF - I know this is a problem so I'm working with just a single sheet.