Make sure you trash all the registry entries when you do that, there is
no guarentee they are all erased (my friend running 98 had the same
problem I tried to uninstall them both and install 3.02 and it didn't
make any difference.  I didn't want to spend the time that evening to do
it again and check the registry.  Especially since it isn't my
computer.)

Steve


Bob Hughes wrote:
> 
> 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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