Can't attach file to mms? (Blackberry Torch 9850)

FULL PHONE SPECS: Blackberry Torch 9850

CAUSES

-Unsupported file formats

-File is copyrighted

-Limited file attachment options set by carrier’s wireless service plan

SOLUTION

-Ensure that the attachment contains files supported by your device.

- Ensure that the file you are trying to attach is NOT copyrighted.

- Contact your network provider.