Thank you for your fast response.
I had no idea what Eldos was but I did some googling and found my answer. I use Jungledisk for cloudbased storage and Jungledisk uses the Eldos Callback system for something in Jungledisk.. Forum «Callback File System»
The photoshop file I was saving was being saved to a Jungledisk location, so it all makes sense that the BSoD occurred when I saved that PSD file. Unfortunately getting rid of Jungledisk is not really an option as I need it for work, my company uses it as a virtual office network share.
I am going to approach Jungledisk, which is owned by Rackspace and see if they can help me address the problem... or maybe there is just a new version I should install.
One last question; can you point out the line in the error dump that indicated to you that Eldos/Jungledisk was the problem?