Hi there,
We are running a website on Windows 2003 Server with French France (fr-FR) culture and having a strange problem while sorting Grid Columns, the details of the problem are as follows,

On clicking any sort-able column the attached popup appeared saying “Unable to communicate with server.”
Most of the time we got the same popup but some times (in very rear cases) it sorts the values correctly.
Furthermore we tested the same thing on Windows 2008 Server with English UK (en-GB) culture and the same code run there perfectly.

We also used a client side function on OnColumnSort it is doing nothing but just changing some text in an HTML control

Furthermore, we observed that Intersoft JavaScript send a postback using the flyPostBackManager but the server failed to deliver the appropriate sorted XML and we get an error popup instead.

We need to fix this soon, kindly help

Thanks