Allowing Asynchronous Saving/Loading in Sigma Grid

[LuckyLindy]

We are using Sigma Grid throughout our app (thanks to the great consulting work by the Sigma team, worth every penny), but we're struggling for how to show the progress of data being saved loaded.  The problem is that our save operations are very long running.  Our server side tracks the progress in session state, and we have an async jquery call to get the status, but when the grid is being loaded it's synchronous and stops all other javascript events from firing. 

Any idea how we can get events to fire while the save/load is happening?

Thanks!

[LuckyLindy]

Nevermind - after looking through the source I saw the call was asynchronous, which means the problem is on our server side (due to synchronous methods).  Will investigate further.