BIswajit Jena wrote:

There is no other step I do.
This problem is happeneing quite a few people I know of. But noone
has the time to actually take up with microsoft for this. But I am so
annoyed by the problem, I thought of spending some time to let MS
know.

MS doesn't read these newsgroups, in general. Even if they did, however,
you didn't make a suggestion, so using the suggestion feature is incorrect.

If what you describe were happing to me, I'd start with a new mail profile.
A new mail profile can cure a host of ills. I don't know if it would help
in your case, but it's certainly work a shot and you can always go back to
the original mail profile if it doesn't help.
--
Brian Tillman