Looks like a problem to me. It reports the Width - PR and Door Size - PR WxH automatic property sources just fine in 2004, but not in 2008. One thing I did notice is that the Leaf Count automatic property source reports 0 for communicating doors in 2004, but (correctly) 2 in 2008. It may be that changing the Leaf Count for communicating doors to 2 caused the "PR" type of width reporting to be incorrect, and no one noticed it until now (or it was noticed, and I have forgotten reading about it).
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David Koch
Autodesk Discussion Group Facilitator
Using ADT 2004 at work; access to 2005, 2006, 2007 & 2008 at home