cannot submit batch 'unable to connect to background process in compressor & dvd studio pro

HI there,

I am trying to use compressor to get some good quality results in DVD studio pro. I have the older version of compressor 2.0 and am having problems, its says cannot submit batch 'unable to connect to background process when I try to submit.

I am currently overseas so can not reinstall the program.

I also tried to make a dvd in DVD studio pro without first going through compressor, so I built & formatted the project then pressed the burn button and it would not allow me to burn a dvd it just says 'Formatting successful, formatting finished'.

Can anybody please help me, thank you kindly

Melissa