Help.

I've downloaded and burned V28 for my Mini Cooper S navigation system.
Then I turned my contact on (first click) waited for the system to started up completly and then inserted te V28 CD.
On the screen there was a message "cd rom inserted, reading software".
After that the screen turned blue and remain empty and blue for 25 minutes, so i ejected the cd.
Now nothing is working any more, the screen remain blue.

What to do?