Maybe bad inet connection? any messages in the log? Anything in client debug log?
On Tue, May 20, 2014 at 11:19 AM, Raju M K <mkraju...@gmail.com> wrote: > hi > when i type some message in chat box and hit on send immediately whole > screen including whiteboard getting black and refreshing after 2/3 seconds. > what could be the issue. > > > -- > Regards, > M K Raju. > > -- WBR Maxim aka solomax