X server crashed - Solaris 10hw8/07 & 100.14.19 driver
 

I just upgraded my system from Solaris 10 HW 11/06 to Solaris 10 HW 8/07 and upgraded the NVIDIA driver to 100.14.19. The server runs but it will either crash or lock up. It's a dual-headed config with one connected to the built-in 6150LE controller on the motherboard (HP Pavilion a1483w) and one on a 7300GS card.

How can I troubleshoot this?