Interesting.
I have both installed too, 3.1 came after is only difference and I've been
jumping back and forth between them ever since I installed P-R 3.1.
The following is an excerpt from Changes.txt (at end of file) located in the
main POV-Ray 3.1 folder and might be the answer(?) to your problem.
------------------
  o The registry keys now work this way -

    HKLM\
      Software\
        POV-Ray\

          Windows\
            Home          -> Points at either v3.0x or v3.1.

          CurrentVersion\
            Windows\
              Home        -> Path of current version always
              VersionNo   -> Current version number

          v3.0\
            Windows\
              Home        -> Points at path of v3.0x if it exists

          v3.1\
            Windows\
              Home        -> Points at path of v3.1

          v3.x\
            Windows\
              Home        -> Points at path of a hypothetical v3.x

    If there was no old version on the users computer, the old Windows value

    points to the new version of POVWIN. If there was an old version, the
user
    will be asked upon installation if they want to have it updated to point
to
    the new one.
---------------------
In other words, looks like you have to uninstall 3.1 and 3.02 then install
3.02 then 3.1...
I know, not great but should fix it, unless of course somebody else has a
better idea?

Richard wrote:

> Ok, this is kind of an odd question, but here it goes.......
> When I first found out about POV, I downloaded version 3.1 and it worked
>
> fine.  However, I'm still pretty new to POV and still trying to figure
> it out, and I noticed that most scene files still use the older version
> 3.0x or 2.2 syntax, so I got version 3.02 and installed it.  The problem
>
> is that when I go to render something, I get a general protection fault
> invalid stack fault thing -- you know -- one of those really annoying
> errors that shuts down the program you're running. I'm just wondering if
>
> anyone out there has any suggestions, or may know what the problem is.
>
> Other important stuff:
> I'm running POV 3.02 for Win95 on a P-II 300Mhz system
> POV 3.1 runs and renders fine
> POV 3.02 will run, but won't render
> I installed the different versions of POV in different directories.

--
 omniVERSE: beyond the universe
  http://members.aol.com/inversez/POVring.htm
=Bob

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