Thank you very much for your answer! :-)

I've done all the tests you sugested and everything seams to be ok, exept test #3 on your list. During that test The message onscreen is:
Pattern extension: not available
70: Flash check sum error bank: 00E2

During the manual test #8, the result aligns with the first column in your attachment file. What does the error message mean? Is it a hardware error on the flsh memory or is it a software error?

Thanks again for your answer :-)