Well its late on Xmas night and I have a precise screen staring at me, so I guess this thread is solved. Not that I succeeded in emptying my trash from another partition ( although it was nearly full that was not the problem)

My 12.04 just will not boot from that latest kernal, Linux 3.2.0-35 generic-pae. After a boot-repair I went into Advanced Options on the Grub menulist and was able to boot up OK on an older Kernal (first thing I did - empty the trash)

I guess I need to report a bug or something.