Next start shows the same,
first this Error

Display driver problem:
"Detected a loaded display driver kernel modul which conflicts with the driver the X server is configured to use. Startup of X server may fail"

and then stop at
"Started Display Manager"

the driver "nvidia-current (290.10-1mga2)" is installed.

I think my installation is dead.
So I will make a new installation  tomorrow evening.

It was a long day.

Magnus