Can't upload iMovie to Youtube
A “Communication error with server” message appears partway through an upload of a 3 minute iMovie to Youtube and it stops. I am using iMovie 11 with Mountain Lion. The iMovie was created as a trailer converted to a project then finalized as I usually do. It was sent to Youtube as HD 720p. It will upload to iTunes, but not to Youtube. I also tried uploading a test 5 second video from iMovie to Youtube and it worked, but for the 3 minute iMovie, the communication error with server message appears usually whenI go back to check on the upload process. It says to check your connection and try again, which I have done many times. This issue has started only since I upgraded to ML and iMovie11. What is the solution or alternative?
iMac 27, Mac OS X (10.6.4)