when it boots, & particularly before starting GUI mode desktop, it shows " localhost(my sys. hostname") console log in ." then you enter as root & after that it will ask pawword .., i.e.
localhost console login : root
password: your root password.
you have to done it very quickly , you have to enter those before login desktop,,,,
then it ppears "#"
then, you type,
# kdmconfig
after that you can set it,
N.B: Here it will shows, Xorg /Xsun
Solaris 10 is taking Xorg by default , I think this configartion does not match your display.. / Graphics.. then I suggest choose Xsun & setting up confiration..
thanks
partha