I've done everything except for unmount TF2Possible solutions:
-Unmount TF2
-Get the content pack
-Disable add-ons you have
-Verify Game Cache
Questions:
-Does it only happen on MERP?
-Any error message or code in the crash report?
-What is your operating system?
-How many add-ons do you have?
-Have you had this issue before?
-Have you tried any of these solutions before?