after editing has finished, I attempt to export the Video to various formats. I try burning to DVD, exporting to AVI, MP4, etc. In all instances, the rendering starts and continues for a while but then all of a sudden my computer crashes and shuts down. When I restart my system, depending on the format I have selected, I either find some incomplete output result or corrupt output file. I have updated all my drivers and have tried this with both version 15 and 17. Any suggestions?