Gwenview & java don't work

I used gwenview for my presentantions, with images and video at Kubuntu 12.04. I used too a java program PresenterServer to conect via bluetooth my android phone and change presentation.

I make a fresh install of Kubuntu 12.10. Gwenview works fine if i open gwenwiew and i search the directory with my images and videas. But if i turn on the java program PresenterServer, the images go fine, but at detect a video , gwenview freeze. I most kill the process.

I thinked that is possible incompatibility with Presenter Server, but today i use other jovo program, open Gwenview and at go to next, a video, all freeze.

I use the last version of Oracle Java

What can i do?

Still nothing. I try with differents versions of java.

Still nothing.

Still when i use java and gwenview, the images translation work fine, but if a video freeze. I use Presenter is a Linux / andruid software to use with presentations, In Linux need java. I use Kubuntu.