dodkalm <dodkalm83@gmail.com> wrote:
> gosh, im getting really frustrated now. First of all, thank you for
> your help Florian,.... I did every step you suggested. There was no
> error in /var/dt/Xerrors (in fact, the file is blank) and the
> /etc/dt/config/Xservers does have the local@console line.
....

You should double-check /usr/dt/config/Xservers .
It should have an uncommented line that looks like-

* Local local@console /usr/bin/X11/X :0

Booting once without a working graphics card can cause that line to
be commented out with a leading # character. That would prevent dtlogin
from starting the X server on later reboots. A commented out line
doesn't look very different. But it acts very different.

--
Mike Stroyan, mike.stroyan@hp.com