I was having the same problem. I was using my 3800 over ethernet with Win7 64 bit, and the eVGA 9400 GT video card.
I was having several problems with this video card not related to printing. I got 1 blue screen crash, and several problem interactions with the NEC SpectraView software for my 2690 Wuxi Monitor. I also had crashes when using print preview.
Finally I was fed up waiting for eVGA or nVidia to fix the problem so I ditched the stupid 9400 GT card and got a Sapphire ATI 5750 card. I've had no problems with crashing, black screens, blue screens, SpectraView or print previews since I got the new video card.
Now there are still other problems with printing in Win7 64 bit, but they don't cause crashes. Using Photoshop CS4 Extended on my system and trying to get a print made is an exercise in patience. It takes many minutes to transition from one dialog to another. Some times up to 10 minutes. This was killing me on a large printing project I did earlier this month.
Finally I discovered that Lightroom 2.5 offers a much superior printing solution than Photoshop does. Not only does it go faster, but you can select multiple images to print as a job, and use the page layout features to gang multiple images on a single piece of paper if necessary.