I am guessing that the files located at "C:\Program Files\Autodesk\Revit Architecture 2011\Data" need to be manually copied into the the new 2012 data folder to keep the custom import line weights I have set up.
I am wondering about other files that get changed along the way.
What about customizations to the "Quick Access Tool Bar" where are these settings stored?
Do the subscription services add-ins have to be redownloaded or are they stored in a file that needs to be brought over into the upgrade?
Then there is the user options dialog boxes. Do these settings have to be reset manually or are they stored in a file that needs to be brought over into the upgrade?
============================================================== Mac Pro1,1 - 2 x 2.66 GHz Dual-Core Intel Xeon - 8 GB 667 MHz DDR2 FB-DIMM - 232.57 GB HD NVIDIA GeForce 7300 GT Autocad 2011 for Mac Donated 42 GB to Virtual Machine running Autocad 2012, Revit 2012, Eagle Point, and Sokkia surveying software Parallels Desktop for Mac - build 5.0.9376 Mac OS 10.6.7 - Build 10J869 windoze 7