Well I found a new glitch (probably an old one actually) I joined a party in the sun portal T2 as they were going on to the next level, and this happened, it was quite funny, but I figured I should let you know OOO.
http://i223.photobucket.com/albums/dd223/march1392_drew/Screenshot2011-0...
And when I moved out of it after:
http://i223.photobucket.com/albums/dd223/march1392_drew/Screenshot2011-0...
My drivers are up to date, the whole party experienced this, that's why this was a problem >.<
This is a known issue. It appears to be related to using Go Solo or removing a player from a party. The bug will cause the next level/depth that player steps into to be repeated endlessly. It is best to avoid Go Solo or removing players from the party until this issue is fixed.
If you find yourself stuck, the best way to fix the issue is to return to Haven at the next elevator.
Thank you so much for answering Aphrodite, I did want to let you know that this one was different however. It completely froze the continuation for everyone of the next floor, to the point that everyone could move back and forth between the elevator and outer area, the elevator simply did not continue on, to the point that we all had to manually return to haven.
Edit: ok it happened again, it's when someone tries to kick or go solo, I see...ignore this post then.
try updating your drivers? Maybe enable the compatibility mode in the games Advanced options?