Be sure your drivers are up to date, and use the old teraformer if the 1.5 on doesn't work. (I uploaded the old one at coastercandy, but you can find it under your back up folder which is under your NL folder)
If you insist on using the 1.5 one, just tell us what your graphics device is. Right click my computer (be sure it's not just a shortcut), and go to properties, click the hardware tab, go to device manager, and in the window that opens, click the + next to display adapters. Tell us what it says.