files used while connecting on net
 

i am able to connect on net on linux..only problem is whenever i am trying to connect using opera..it connects but after that my dialer fails to log me onto the net..

maybe the dialer or some other files are getting corrupted..

how do i trouble shoot this problem..

at present i reloaded the whole OS

kindly save me from this pain..

incase the file is corrupted how to repair it.....

what file is it????