Startup State 19 - Aperture may be Misaligned

Hello,

HFA 740i
Boots with the message below

System startup state 19
Aperture may be misaligned
(Pressing Proceed will NOT allow testing)

[Retry]                      [Proceed]

Even after pressing [Retry], it persists. Same as when I restart the machine.

Why this message?
What can I do about it?

Please help out.

Thank you.