I am working on an assembly file that will not display correctly whenever I zoom or scroll. I am running SolidWorks 2012. The assembly was built in an older version of SolidWorks (not sure which version). I have not changed any of my settings, and this is the only file for which I am encountering this problem. Has anyone seen anything like this before, or do you have any suggestions for troubleshooting it? Any advice would be greatly appreciated.