Install problem Solaris 10.1 6/06

Hi all! I'm trying to install Solaris 10.1 6/06 and got a problem under the install,after the first Grub screen the screen went black and all letters are seen as dots, i have installed Solaris 10 earlier and that goes without any problem.
Are there any settings i can do to Grub under the first screen that appears, for example any vga commands?

Lars.

hello - are you using sparc or ?

Hi there! No, i running an x86, Pentium 3 coppermine 600 Mhz, with 520 Mb Ram memory and a Nv GeForce2 MX 400 graphic card.

Lars