Need help with PS CS5 crashing while openinng specific document!

Question

Good morning all, I am the network admin at my company, and i have a user expereicneing a strange issue.  I do not know much about PS, other than how to install it, so i am at a loss to troublshoot this issue.  Any help would be greatly appreciated.
Background: Computer is a Dell Precision 690 with 4GB RAM, running windows 7 pro x64 with SP1 (this was happening before SP1 was applied as well). Video card is nVidia Quadro NVS 285 .  I have fully updated and patched everything i can find, including using the most up to date, and "performance" drivers from nVidia (neither driver solved the problem) for the video card.  I could not find a partner certified driver for this partticular card.  The software is Photoshop CS5 version Version: 12.0.3 (12.0.3x20101211 [20101211.r.1222 2010/12/11:02:00:00 cutoff; r branch]) x64.
I have another user, with the exact same computer, and exact same software (they were made form the same image) whom does not have this problem.
The issue:  Basically, when opening this one particular image (from the users desktop) PS crashes and throws up the following error.  Sometimes it will actually display the image, then crash as soon as you try to even so much as click anywhere on the image.  Other times it conks out before the image is even displayed.
Problem signature:
Problem Event Name:     APPCRASH
Application Name:     Photoshop.exe
Application Version:     12.0.3.0
Application Timestamp:     4d035d7d
Fault Module Name:     CoolType.dll
Fault Module Version:     5.7.83.10783
Fault Module Timestamp:     4cab0d45
Exception Code:     c0000005
Exception Offset:     0000000000033a38
OS Version:     6.1.7601.2.1.0.256.48
Locale ID:     1033
Additional Information 1:     3a1d
Additional Information 2:     3a1d09b5925693dbcbec7b77fa814510
Additional Information 3:     bce7
Additional Information 4:     bce7b9096fa4d3e33239f38f9b4cacd0
My user says there is nothing fancy or odd about this image, and the filesize wasn't any bigger than anything else he works on.  What really baffles me is that the other user with the same setup has no issue...  Thanks in advance!
-Jim

Answer 1

Since CoolType is implicated, it seems likely that user has installed a font that throws Photoshop for a loop.  The recourse in that case is to try to figure out which one it is and remove it from the system (and/or reinstall an un-corrupted copy of that font).
Some tricks to try to figure out which font it is:
1.  Look in the document that's failing to open with the other user's copy of Photoshop.  See what fonts are there.
2.  Create a new document on the offending machine, invoke the Horizontal Type Tool, then open the font list.  You might find the list stops abruptly before the offending font.
3.  Remove all fonts except the Windows standard ones, see if the problem goes away, then add them back piecemeal until the problem recurs.
If the above doesn't get you success, another thing to think about when a problem is user-specific:   You might reset their Photoshop preferences to out-of-box defaults.  To do that you press and hold Control-Shift-Alt immediately after starting Photoshop from its menu entry or shortcut.  You have to be very quick, and if you do get its attention it will prompt and ask whether the preferences should be reset.  Keep in mind some Photoshop reconfiguration will need to happen after you do this, so it's not something to do lightly or you might get your users upset at you.
Best of luck.
-Noel