Hi,
You need the GLUT library from www.xmission.com/~nate/glut.html. Put dll and files in the pd/bin folder. Also, make sure you have the gem.dll aswell, you have to download it separately, and put it in the gem folder.
I had a bit of difficulty, as I'm new to Gem and Pd also. Sussed it out after some blood sweat and tears though.
>From: MchZanes2@aol.com
>To: pd-list@iem.kug.ac.at
>Subject: [PD] Get response : "Can't load gem library..." /newbie
>Date: Tue, 4 Mar 2003 13:32:32 EST
>
> Anyone w/XP OS able to "plug-in" Gem to PD? I ran
>"GEM_INSTALL.bat" from the command prompt and doing that moved the contents
>of Gem around so I'm assuming PD is ready to take Gem as plug-in; however...
>when I type in C:/pd/bin/pd -lib/gen/Gen or C:\pd\bin\pd -lib/gem/Gem what
>I get is a lexicon of various flags preceded by "usage: pd [flags] [file]"
>... Is the command prompt "telling me" to enter info. differently? Other
>variations gave me command line response " cannot open gem library", but most
>permutations simply gave me "cannot find specified path"...
>
> If the amount of "reward" in a given activity is in
>inverse proportion to the amount/level of frustration which proceeds
>it...then I'll keep pluggin' away. But if anyone holds the
>KEY....(salivation)....................Thanks again............