an installation step

[Kristoffer Gustafsson]

-- 
Kristoffer Gustafsson
Salängsgatan 7a
tel:033-12 60 93
mobil: 0730-500934
Hi.
Just got an installation question here.
I'm installing ubuntu now.
I've just selected to install ubuntu beside the operating system on
the computer.
Then I can't continue. Just got a blank screen, and an exit push
button somewhere.
Can you help me what  can be going on here?
/Kristoffer