Dear PyMol experts:

When using Open-Source PyMOL 0.99rc6 I read in a pdb file which has
40 coordinate sets (each is one frame in an animation) each beginning
with:
HEADER  Output iset=     n "xxxx_G=r_0_01"
then a list of the pdb coordinates
and ending with:
ENDMDL
"n" ranges from 0 to 39.
This results in the following output:
HEADER  Output iset=     0  "xxxx_G=r_0_01"
HEADER  Output iset=     1  "xxxx_G=r_0_01"
 ObjectMolReadPDBStr: read MODEL 1
 ObjectMolReadPDBStr: read MODEL 2
etc. ...
 ObjectMolReadPDBStr: read MODEL 39
 ObjectMolReadPDBStr: read MODEL 40
 CmdLoad: "/home/psstern/pymol/xxxx_G=r_0_01.pdb" loaded as "xxxx_G=r_0_01".

This then displays one molecule with 40 frames and the animation can be
activated by clicking on the red arrow.

However, when using Open-Source PyMOL 1.3 the same file results in
different behavior.  Instead of reading in one object with 40 frames
it reads in 40 different objects and displays all of them.  The output
I get is:
HEADER  Output iset=     0  "xxxx_G=r_0_01"
HEADER  Output iset=     1  "xxxx_G=r_0_01"
HEADER  Output iset=     2  "xxxx_G=r_0_01"
etc. ...
HEADER  Output iset=    38  "xxxx_G=r_0_01"
HEADER  Output iset=    39  "xxxx_G=r_0_01"
 CmdLoad: loaded 40 objects from "/home/psstern/pymol/xxxx_G=r_0_01.pdb".

Is this a bug or am I missing some parameter which is set differently
by default for the two versions?  I couldn't find a solution in the
on-line documentation.

Regards,
Peter Stern

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