How to enable the OK button in "Open with" window

[Wong Kwok-hon]

Hello!

I used the "root" to install the realplayer 10 (rpm) and configurated
at root account.
Then I used the normal user account to login but I found the program
name is blank and the "OK" button is dim in "open with"  window when I
click the url like live.ram.

How to reset the "OK" button to normal ? Because it seemed disabled in
the user account.

Thanks!

Ringo