Can't connect to SRM

Hello,

vCenter server 5, vi client 5 and SRM 5.

Each time I try to connect to SRM via the plugins, I always get this error message : An Internal error occured in the vSphere Client. (see attachement).

Everything else in the vCenter client is working well.  I tried to uninstall/reinstall the vi client, .NET framework 3.5 and 4, and the SRM plugin.  I also installed the .NET framework 4.5.

I don't know what to do next.  Anyone have seen this issue?

Thank you.