540x23 image causes runtime error "R6025 - pure virtual function call"

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After installing PS7 on a fresh XP Pro machine, I keep getting the following error when I try to save an image that is 540 pixels by 23 pixels. No problems with any other sized images, and it doesn't matter the contents of the image.

Microsoft Visual C++ Runtime Library
Runtime Error!
Program: C:\Program Files\Adobe\Photoshop 7.0\Photoshop.exe R6025
- pure virtual function call

I had the same problem after installing fresh in Vista, so I don't think it is the OS. The problem is repeatable and happens every time. Disk drive / network drive does not matter. New, 540 pixels x 23 pixels, Save As, [crash].

I've never seen this problem in PS7, CS and CS2, yes. A pure virtual function call is either a programming error or the result of a missing/corrupt file, as I am sure you are aware. It can also be caused by a corrupt font, preset or plug in. Have you ever been able to save at this size? Are you creating a new image at this size or cropping an existing one to this size? Have you tried making a crop tool preset of 540px * 23x and cropping and saving an existing image?
There was an upgrade for PS7 to PS7.1 but I don't know if it's still available, worth a search?
If it's a new installation, it's unlikely (but not unheard of) that you have a corrupt prefs file, to delete the file. hold down the alt+control+shift keys whilst starting PS. If you get the timing right you will be asked if you want to delete this file, you do; a new one will be created at startup.

TWK

540x23 image causes runtime error &quot;R6025 - pure virtual function call&quot;

540x23 image causes runtime error "R6025 - pure virtual function call"