Openshot Video Editor shuts down my system while exporting a project to HDYoutube (Ubuntu 11.10)

As you read
I'm having untimely difficulties with "OPENSHOT".
I do a lot of editing for youtube and it requires HD uploading.Now the problem here seems rather odd and I know of a few people who are suffering from the same issue.

This problem began when I installed the Ubuntu 11.10 update.
I went into the video editor and began my project.
After finishing I moved to export and set the same HD export setting.
Profile: WEB
Target: Youtube-HD
Video Profile: HD 720p 25fps
Quality: Med or High (both have the same output)
-I'm not sure if thats the exact way how to export into youtube-hd, but that's irrelevant 'maybe'.-
I begin the export.
Here's the kicker... after 5 minutes and almost half way through the export, the entire system "shuts off".

It takes a few minutes to restart it, attempting restart to early makes it shut down again... (I have to wait a good 3 or 4 minutes. Thankfully I saved my projects)
I'd appreciate some help on this, and excuse me for my "wrong ways of posting" i'm a noob, so try being a little patient ^_^
(If this problem can't be solved in the next few hours, I'll be late on my next upload and most likely loose my job for youtube...)