Help with importing AutoCAD MEP into Navisworks 2010

I need some major assistance. First I am a Navisworks newbie. Some background info.

We are using AutoCAD Architecture 2009. Our MEP engineers are using AutoCAD MEP 2009. We are using both Navisworks 2010 Manage and Review.

The Problem:

I have received MEP files from our consultant. We are have placed them in our project navigator, xrefed into a coordination model and saved.

I have tried opening the dwg in Navisworks and the majority of the plumbing piping is not showing up, only the text labels and flow direction arrows are showing up.

I have tried multiple combinations of shade modes in ACA with display overrides of the xrefed MEP files with no luck.

We do not have a copy of MEP in the office, so I can not troubleshoot with that, and our MEP engineer has to himself do some tricks to get it to work on their end.

I have included two png of what I am seeing in ACA and what I am seeing in Navisworks. Does anyone have any options.

Thanks

Jeff

Have your MEP consultant download the free NWC Export utility and share with you the NWC. This will avoid object enabler/xref issues that seem to be the cause of your issue.

http://usa.autodesk.com/adsk/servlet...&siteID=123112


Cheers

This isn't a proxygraphics issue is it?

I get files from my mechanical sub that I can't get to load into Revit unless I change the proxygraphics, explode the file, and save as AutoCAD 2007.