Is there any way to get this beta driver? I am experiencing the same problem.
There is a known bug with the released version of the printer driver where it will crash like yours has, once you have more than a certain number of custom page sizes. The beta version I have fixes this but who knows when HP is going to make it public.
The only way to fix it with the version you have is unistall the driver, delete the HP folder in th programs file folder and re-install.