finnally i found it.....problem in my /home/.dmrc...

alhamdulillah...i found that problem in my ubuntu 8.04,,,but i'm gettin' to long to get the way to finish,,,,and then, i had installed ubuntu 9.04 in mu laptop....oh my....hiks....
soi found it at : http://milisdad.blogspot.com/2009/07/error-users-homedmrc-file-is-being.html
thanks mr dedy hariyadi....

this is the solution :
1. sudo chmod -R 755 /home/yourusername
2. sudo chown -R yourusername.yourusername /home/yourusername
3. sudo chown yourusername.namauseranda /home/yourusername/.dmrc
4. sudo chmod 644 /home/yourusername/.dmrc
5. Logout and Login back again

try and feel :)