[PyMOL] problems using "within" in selections

[<an...@cc...>]

I was trying to study the ligands in a structure, and then zoomed in on =
a Zn ion in molecule A:
=20
create ligands, 1q74 and het and not resn HOH

(Selector: found 28 atoms.)

create ZnA, ligands and chain A

(Selector: found 1 atoms.)

create nearZnA, 1q74 within 6 of ZnA=20

(Selector: found 0 atoms.)

=20

Last night, this worked fine. This morning, I talked to a friend who =
could not make it work (same example), and then I typed in the commands =
in her session and it worked. Using the up arrow, we could not tell the =
difference between her command and mine. Now, I can't make it work on my =
computer. Why?? Should I be doing this in a smarter way? I am using =
version 0.99rc7 with Windows XP.=20

=20

Best regards,

=20

Anne M=F8lgaard

=20

=20

=20