Hi Artur-pt,
T.v.m. for your quick answer. I understand I can add
XXXXXXXXXXXXXXXXXXXXXXXXXXX
Fixes
FixShutdown_0004
XXXXXXXXXXXXXXXXXXXXXXXXX
in my xxxorg.plist.
About installing Chameleon, I was a little reluctant beacause i do not really know how to manually erase Clover in a consistent manner from my hdisk. Just erease the boot file and EFI-Folder?
Last but not least. Let my say I have been reading your comments and solutions with admiration many, many times und got something like a warm heart when I saw you were contacting me directly this time