I will do that later this evening, when my kid are in bed ;)
Edit:
Flashed it with the K800 firmware now and it worked. Now i just have to change the font and menu again :)
Thanks for your time!
I have now discoverd what it is!
When i change the save path from phone to memorystick then i goes white as in my first post. After that you pop out the M2, start camera wich now work though it complains that thers isn't any M2 in the slot. Change to save at phone then i work again.
Strange isn't it?
Edit 3:
Formated the M2 and now it works as it supposed.