Cumulus 7.1.1 has dramatic improvements over version 6.6 we were using. We're experiencing an issue in 7.l.1 which I was wondering if others have experienced.

We're having drag and drop issues with the new Cumulus version. On our Macs running Mac OS X 10.4.10, a user will select an asset which causes a green circle with a plus sign to appear. As the user drags the asset to a new category on the left side, they are unable to drop the asset into a new category. The green circle with a plus sign does not appear and when working, a blue box will appear around the category the user attempts to drop into but in this example, none of this occurs. Has anyone else experienced this issue. How did you fix this problem?

I'm working with the software vendor we bought the Cumulus app from but have not received any working resolution.