@woody14619
Thank you for the reply.
Problem #4 Will it work if i want to recreate the list using this command to solve the duplication issues:
tracker-processes -r
Problem #1 is no longer a problems. Somehow, today all catalogs are clean.
Problem #2 is still exist. I did attempted to install Kmplayer, and got the same error again, even though all catalogs are refreshed (clean).
Problem #3 I found a get around by using Nokia Messaging mail to get the Gmail notification.

Could you help me on the problem #4 which is my main problem.

Thanks again.