Having problems exporting, restarting and then losing edits and transitions that were already finished, inability to quit without saving, movie looks great in FCP X but freaks out after export (jittery, clips that were cut out are back in the movie, flipp

Having problems exporting, restarting and then losing edits and transitions that were already finished, inability to quit without saving, movie looks great in FCP X but freaks out after export (jittery, clips that were cut out are back in the movie, flipping back and forth between frames), inconsistent behavior all around, crashing, burning heap pile of dooky. Can't even get the most basic 10 minute project completed. All done on brand new (weeks) macbook pro with Lion. Please. What's wrong here?