[SOLVED] Gimp not launching on Kubuntu 11.04

My friend loved the Ubuntu 10.10 because of gnome, but he loves to get upgraded so he upgraded and got the unity and told that he didn’t loved that. So he installed a fresh Kubuntu 11.04. Then while he started gimp, he found the following problem:

And asked me to help. Well as usual I searched for the solution over the internet but didn’t got the actual solution so I tried to mix up all the solution and concluded to a final solution that worked on my friends PC.

– change GTK+appearance to Rayleigh
– start Gimp and stop it
– change GTK+ appearance back to oxygen.

This process may apply to any other program. Hope this solution works for you.