Connection Problems

[aljabbary]

I have just setup SMF 1.1 RC1 then while testing everything was fine this morning. Now I am getting this message:

Connection Problems

Sorry, SMF was unable to connect to the database. This may be caused by the server being busy. Please try again later

The server is working fine without any problem. I have checked the database and it is fine too. I tried to repair the database just in case and no thing change.

Any clue? 

[dtm.exe]

If no database, user, or password settings were changed and you're still getting that message, I suggest you contact your host.