[Evolution] Evol hangs

[ViK <vishwanath kalbagilmath hp com>]

Hello All,

I have following evolution packages installed.

evolution-data-server-1.2.2-3
evolution-connector-2.2.2-5
evolution-2.2.2-5
evolution-webcal-2.2.0-1

And evolution is configured for exchange server. During the startup I 
get a error message box "Error while scanning folders in Exchange server 
<exchange server name>" Could not connect to Evolution Exchange backend 
process No such file or directory"

The 'reply', 'replyall' and 'forward' hangs and on the screen it says 
"BBDB spinning up" and pops up a message saying "The application 
/usr/libexec/evolution-data-server-1.2" has quit unexpectedly...

This problem I am facing very frequently... can anyone pls help me in 
fixing this...

Thanks in adv
-- ViK