I had a similar problem when I first came back to SL using the SL Viewer. Except my error kept telling me that my system continuously failed to run the executable for the Second Life Viewer. I think this is a problem on Linden's end. I'm not entirely sure. I couldn't find an adequate solution, so I simply went with Phoenix Viewer. However, have you tried the Firestorm Viewer? It has an interface similar to Viewer 2, and you might be able to access the aditi grid with it. Not 100% sure, though. Let me know.