Changing Screen Resolution

I have installed Solaris 10 over vmware onto my machine. Now when I want to change my screen resolution it only has one option which is 800x600. Is there a way to change that to a bigger resollution? And if there is, what file do I have to edit and what text editor do I have to use?

at your loginscreen choose the command line login. when you are logged in your console use the command "kdmconfig" which opens a dialog where you can change your graphic options.
gP