Now, I reinstall Ubuntu 9.04 with CD after damage this OS when testing Mac OS X.

During installation process,
- I choose to set partition manually.(I have 3 partitions such as vista, data and one for this installation.)
- format with ext4 file system.

After installation finished,
I see other partition from Windows Vista Business and can map drive. (This good for copy and others.)

I’m happy.
I can choose Vista and Ubuntu at Grub.