Photoshop is Crashing when saving files

Question

Hello, I have been having some trouble saving files.  Sometimes, and usually with the first file, Photoshop will crash when I try and save a file.  It also happens when I try and open a file into photoshop.  Most specifically, when I try and open my watermark file (png).  I have deleted the preferences, and am working on a freshly installed version of Windows 7.  Here is the crash report I was able to retrieve.  I am usually not able to retreive this info, because in most cases, Photoshop just completely dissapears instantly.
Problem signature:
  Problem Event Name:     BEX64
  Application Name:     Photoshop.exe
  Application Version:     12.1.0.0
  Application Timestamp:     4d90d339
  Fault Module Name:     StackHash_60e1
  Fault Module Version:     0.0.0.0
  Fault Module Timestamp:     00000000
  Exception Offset:     000007ff7fe23a20
  Exception Code:     c0000005
  Exception Data:     0000000000000008
  OS Version:     6.1.7601.2.1.0.768.3
  Locale ID:     1033
  Additional Information 1:     60e1
  Additional Information 2:     60e1dbb7fe41a65d81ede1e150bfe328
  Additional Information 3:     63f7
  Additional Information 4:     63f71ec7283e95dfbe0ed5ec6838a62c
Read our privacy statement online:
  http://go.microsoft.com/fwlink/?linkid=104288&clcid=0x0409
If the online privacy statement is not available, please read our privacy statement offline:
  C:\Windows\system32\en-US\erofflps.txt

Answer 1

StackHash implies memory corruption.
By and large, during software development, the number 1 reason I've isolated for that is problems in display drivers.  That's not to say it's the only reason memory could be corrupted, but it's more common than most people would think.
What video card do you have, and what version of display driver?
Does the problem persist if you disable OpenGL Drawing in Edit - Preferences - Performance (then restart Photoshop)?
-Noel