Error message: Object reference not set to an instance of an object

Question

I've tried the first suggestion with no luck. I can't try the other two because I can't close Studio!

Brian McGill · Accepted Answer

Hi Paul, 
 
Your messages have taken ages to reach me. Anyway I solved it by rebooting the computer with Studio still open, I know this is probably not a good idea, but it worked! 
Thanks!

Paul · Answer

What was the first suggestion? There seems to be something missing here related to this problem? 
 
Regards 
 
Paul

Trados Studio > 1. Trados Studio

Error message: Object reference not set to an instance of an object