HI,
When I start Kmail I get the following screen. Please tell me whats the problem and how do I solve it?
Thanks in advance

What errors are contained in the MySQL error log? It can probably be found under ~/.local/share/akonadi/

Also, please ensure that Virtuoso is installed, and that Nepomuk is enabled (Strigi not required)

I have desktop search disable and along with it Nepomuk is disabled. I guess thats the problem. But I wont enable it. Login is faster without desktop search so I have it disabled.

How exactly is it slower? Are you sure you didn't have Strigi enabled, as that has much greater possibilities to slow down startup. Unfortunately Nepomuk (first box in the Desktop Search configuration) is required for Akonadi search

If you previously allowed it to index your system, removing ~/.kde4/share/apps/nepomuk may improve the performance of Nepomuk startup.

Moved into "Office & Productivity".