Apps run as root appearing like win 98 style after installation of gnome 3

I installed Gnome 3 using Ricotz's PPA. Then all windows using sudo and gksu is looking like its running under windows 98. System Specs:

Intel Core 2 duo

Nvidia 6200

Ubuntu 11.04

I also installed the Adwance theme.

Solution 1:

The answer to this is to fix the gtk2 theme to do that:

and in themes, select Ambiance instead of Adwance

Now this should be fixed