[kubuntu] pipelight only works as root topic

Hello all,

I installed "pipelight" from the repositories and use Firefox as a browser. I use "User Agent Overrider" plugin in combination with "pipelight".
My (k)Ubuntu version is 12.04 LTS 64 Bit.

Unfortunately I can only view movies from Amazon using "kdesu firefox".

With my normal user account I get an error 1002.

I already tried to move the $HOME/.wine-pipelight directory from root's home to mine and changed the ownership. That did not help.

Did anybody already see this issue?
Do I have to add my user to a particular group?

This issue only seems to appear on 64 Bit version of Kubuntu.
On another Laptop with a 32 Bit installation this does not happen.

Any solution on how to solve this or how to debug would be great!

Thanks in advance!

Ralf