Matthew,
This seems to be due to graphics. Check information at
http://communities.ptc.com/message/243172#243172
Regarding the config.pro, seems you don't have permission.
You can try:
1. Copy the config.pro to desktop
2. Modify the file on desktop and add the config option enable_opengl_fbo no
3. Save file
4. Copy the modified file from desktp and replace the existing in installation (use paste).
5. It may prompt warning for Copy ....., use Copy and Replace on that.