CS4 Crashes on Merge to HDR

Question

When attempting to merge some larger images, PS seems to successfully load the images (a set of three in my case) and presents me with the window showing the images and PS's estimation of the relative EV. When I click on "OK" I get the following message:
Error
Error 54: Uncaught JavaScript exception: Error #.
Line 168
->                throw err;
Can this be fixed?

Answer 1

Well, in trying to Merge to HDR Pro in CS5 with blank documents of 52758 x 10980 pixels, I was able to reproduce a similar fault.
I am still testing, but I noticed it didn't seem to be grabbing for a lot of RAM while it was running.  I had 4 GB or so free at the time of the fault.
On discussion with LambdaKettle offline, I have discovered he's developing 3 different sets of files and using Merge To HDR to get an HDR-like image out of a single set of exposures.
Sounds like the new CS5 function "HDR Toning" might be the cat's meow for this kind of large image work.
-Noel