Skin Problem

[Headshot]

Hi there,

I am using Plesk 8.6 on Fedora Core 8 VPS.(Virtuozzo)
I changed my Plesk skin to Long Horn Black, but for some reason the side bar wont change to the new look.

Small screenshot of the problem

I changed tried to change it to a other skin, but same problem everything changes except the sidebar.

Does anyone know how to solve this problem?

Kind Regards