When have software raild, the normal upgrade of ubuntu, don't work.
I tried to correct everything before updating + making a backup :-)
The updata went bad.
Tried to install Debian 5.01 (everything worked, but some of the tools I need for development was too old)
Tried Ubuntu 64bit, and now everyting works, flash, jave everyting.
So lessons to be learned:
2) keep your system and your /home folder on semerate partitions
3) Don't be afraid to experiment with other distros, since you can't loose data
4) Remember always in the backup to keep a copy of your databases, and /etc