Video problem with 7.2.0

[dataworx22]

Did you ever tested the md5sum (=> Test the ISO) of your download and/or the integrity of your DVD/CD and of your flash install with the cheatcode "knoppix testcd"?

I tested the md5sum after downloaf, it was good. I have just run cheatcode "knoppix testcd".the system reports "All files OK".