Spent days editing a video I'd taken on my camcorder, adding titles, music, then added a few still photos at the beginning.  When I was adding background music, the program said it was 1 hr 35 minutes long, when it was really only about 19 minutes.  I deleted some of the music objects that had gotten onto the timelime at the end of the project.  In trying to check if there were other objects there, I don't know what happened but the program told me I had exceeded 6 hours, which is the limit.  Since then I can't retrieve the project.  Also can't close it.  The message I got is that there is still a project open.  I've tried closing it, but nothing happens.  The video file seems to be empty.

My computer is a HP Pavillion laptop with 260 Gigabytes and 2 G of Ram.

Please help.