I have used Live CD version 11.04 on a HP 2540p with no problem and upgraded from 10.11 to 11.04 with no glitch. Are you sure you are seeing the exact same problem?
I have used Live CD version 11.04 on a HP 2540p with no problem and upgraded from 10.11 to 11.04 with no glitch. Are you sure you are seeing the exact same problem?