The typical behavior for this issue is an Autodesk Revit has stopped working error when you attempt to open the Materials or Render Appearance Library dialogs:
Revit 2012 Release
This issue should be improved with the Revit 2012 update 1 release; links are available below to download:
Revit 2011 Release
For Revit 2011 utilizing the following troubleshooting process should resolve or reduce the occurrence of this behavior.
1. Windows Tablet PC Input Service
Verify if there are any Services (Local) running called Tablet PC Input Service. If so stop the service, launch Revit, and see if the crash persists.
2. Wacom Tablet Drivers \ Service
Verify if there are any Services (Local) running similar to Wacom Consumer Touch Service. If so stop the service, launch Revit, and see if the crash persists.
If Revit still crashes, verify if the workstation has Wacom Tablet drivers. Uninstall the driver if present in the Windows Control Panel to see if the crash persists.
3. Windows Temp Folder
Close Revit 2011; then empty the contents of the Windows Temp folder at:
You can copy \ paste the address above into a Windows Explorer path.
4. Windows Accessibility
Verify if the workstation has any of the Microsoft Control Panel > Appearance and Personalization > Ease of Access Center tools enabled.
For example, with On-Screen Keyboard or Magnifier enabled Revit can crash at the Materials dialog in a similar manner. If so, test disabling the access tools temporarily to see if the crash persists.
5. Run as Admin
Right-click on the Revit 2011 shortcut > Run as Administrator. See if the crash persists.
6. Simplified Startup
Restart Windows with Microsoft MSCONFIG > General, and do either a Diagnostic Startup or Selective Startup. Verify if the crash occurs in a simplified environment.
If the issue persists, the following process will help us better understand if we are dealing with the same scenario. If you are on Autodesk Subscription, I would recommend creating a support case with all of the information from this post. If you are not on Subscription, please create a post on the Autodesk Revit Discussion Groups here referencing this information for additional assistance.
1. If you log onto another workstation, and do the same process, does the crash occur? Or is it simply isolated to this 1 workstation?
2. Does the crash occur in a new project file, or is this isolated to a specific project file?
3. What exact steps are you taking to cause the crash in the Materials Editor?
4. Does the crash occur if you navigate to the materials dialog via different routes as follows:
[A] Manage > Materials > Render Appearance > Replace
[B] Select a wall > Edit Type > Structure Edit > Material > … > Render Appearance > Replace
[C] Manage > Materials > Select “Wood” material > Render Appearance > Click down arrow next to Image > Edit Image
Please include the following documents if creating a case: