install fail on dell mini 9

im trying to install openSUSE 11.2 on my dell mini 9 with an external cd player and i got to the screen with time zone and language preference but after that it went back to the blue screen and said install failed .

Usual advice in this situation would be, to begin with:

Verify installation file source (md5 or sha)
Verify installation media (option to check at boot menu on DVD at least)
Verify hardware compatibility.

IG