If I try selecting a new configuration, I get the error message "An unknown error occurred while accessing an unnamed file.", then SolidWorks crashes. I can delete configurations without problem, but I still cannot save.
I tried copying the assembly file over to a new file, but I still get the unknown error.
Our document control people went in recently and renamed all the files in the model, but I think things have worked since then. They are not working now. There could be something embedded in one of the inactive configurations.
Has anyone ever seen anything like this? Any ideas?