Welcome to the forums,
You can put your computer specs in your Profile of the web board. Just click on the User Control Panel at the top, go to the Profile tab and enter the information in there.
Open your MSP 8 project and check for gaps between clips. MSP will render a video file leaving the gaps. In the rendered video, the gaps will of course display as black. You need to close up all the gaps on the Main video track, which would be track #1. A quick method to close the gaps, is go to the Search
menu, and choose, Find empty time slots
. A small dialog window will open showing these. Highlight one of them, then press the Delete button. Then you will need to re-render your project.