Session Drummer Problems

Hi. I posted this in the wrong forum earlier today.

I use Sonar Platinum at work and at home. If i create a project at either location and insert an instance of Session Drummer, save it and then start working on the same project at the other location, when I load the project it states......
 
'the following plug-ins are referred to by this project, but could not be found.....etc etc.
 
It then refers to SessionDrummer, which is installed at both locations. At that point, I have to delete the instance and then insert a new instance for it to work, and then the same thing happens again at the other location.
 
Im wondering is it perhaps because the plug-in is named differently on both machines?
 
Id truely appreciate any ideas anyone might have.
 
Regards
 
Lee

Yes they are, that is what's so puzzling to me. It was all working fine until I had to re-install Sonar because of a problem in the computer which turned out not to be anything to do with Sonar. Interestingly enough, I re-installed using the CC, but it actually installed to all the paths that were originally set.