I didn't have the fc problem when I kept to internal storage option but I did have the stuttering ring tone, which is now sorted thanks, is still asking me to update but that's only problem ive seen, I followed below method
- If coming from another version of Lightning ROM
- Wipe cache
- Wipe Dalvik cache
- Choose zip and then choose the ROM
Well If you are having problems, all I can advise is a re-installation with full wipes.