Turn Off Incoming Messages
You know that feeling of annoyance you get when the same piece of junk mail is always delivered to your door? You don’t really care what its about because everything you’ve got already works very well as it is. Draw similarities if you will to the admin notifications that always pop up when you log into your backend. Rather like having a mailbox, I’d prefer to go and check the the notifications page for any important message rather than be bombarded by them every time I load up the admin. You can find your notifications in System > Notifications.
To disable teh notifications simply go to: System > Configuration > Advanced > Advanced > Disable Modules Output

From this pretty long list find ‘Mage_AdminNotification’ and set it to disabled. Be gone forever…

Thank you,
Your post helped me from wasting long minutes ( hours ? ) trying to find out myself how to disable that popup message
Cheers !
I have create the New ROOT directory called Electronic Components, add the new product to Electronic Components directory, Then When I click Manage categories it display only single table, not able to create another directory,
Magento Version is 1.4.2.0 ,How do i solve this problem?
Thanks & Regards
S.Sivakumar