Hello, thanks. I tried to flush 37 out from an running System: reboot - F7 - prepare - fail. Then I tried the same with an power off cycle the same.
Then I took an other device an connected just Keyboard, VGA an the stick with the BIOS and again:boot F7 Version 37,39,41 and all fine.
Then I tried direct 41 with four other devices, all OK
At the end I removed the first device from HDMI, USB cable hub with mouse,keyboard and touchscreen, connected just VGA and mouse and then also 41 OK
I do not understand why, but it works :
best reagrds
Klaus