Photoshop CS4 64bit crash at launch

Question

Afternoon everyone!  I know this might be a dead horse getting beaten again, but after searching the forums I couldn't find a situation that matches mine.
I am currently running Photoshop CS4, latest update to 11.0.2.  Until about 2 days ago I was running 64bit version photoshop.  I came into work the next morning and the computer was completely hung.  I did a hard restart, and since then I can only use Photosop CS4 32bit.  Every time I try to launch 64bit Cs4, this is the windows crash error I get:
Problem signature:
  Problem Event Name:                        APPCRASH
  Application Name:                             Photoshop.exe
  Application Version:                           11.0.2.0
  Application Timestamp:                     4bf2d91c
  Fault Module Name:                          StackHash_693d
  Fault Module Version:                        6.0.6002.18005
  Fault Module Timestamp:                  49e0421d
  Exception Code:                                  c0000374
  Exception Offset:                                00000000000aef37
  OS Version:                                          6.0.6002.2.2.0.768.3
  Locale ID:                                             1033
  Additional Information 1:                  693d
  Additional Information 2:                  871b80e6da6de5d2b5e2f4f9fad7eab3
  Additional Information 3:                  052d
  Additional Information 4:  798a4fbf3c14af6d98c4492732c44346
I know this is not related to plugins, because I don't run plugins on my work computer.  In fact, the largest files I use are usually 3000x3000, and under 4-5mb.  I'm not pushing Photoshop at all.  Any ideas?
I have tried doing a clean install 2x times with no luck.  I'm wondering if something is stuck in registry or old files from a previous install are causing this?  I have also made sure I'm updated with all my other related drivers:  ATI graphics card up to date, etc.
Ideas?

Answer 1

Generally speaking, you should see no errors (just a whole lot of informationals).  Probably the best thing is to just scan through the log using the time stamps to limit the entries to those that occurred around the time of the problem.
Might be a good time to open up the computer and clean out the dust (e.g., gently with a vacuum and brush nozzle).  Overheating can reduce reliability.  Does the room get hot (e.g., because the A/C is turned off) at any time of the day?
-Noel