MegaWizard - Altera PLL 13.0 - generation error

HI
I am trying generate Altera PLL 13.1 Megafunction
(when trying either 64 bit Quartus Version 13.1 - Windows XP Professional 64 bit Service pack 2
or 32 bit Quartus version 13.1 - - Windows XP professional - Service pack 3)

The generation gets as far as

>info : Generating simgen model
>Error: Execution of script C:...../Temp/alt6029_789481781428619152.dir/0002_pll_replace_gen/proj.tcl failed
>Error:Error starting the process ([and,Settings/flong/Local, Settings/Temp/alt6029_789481781428619152.dir/0002_pll_replace_gen, C:/altera/13/1/bin//quartus_sh -t, run_simgen_cmd.tcl]). Cannot run program "and" (in the directory "C:\Documents"): CreateProcess error=2, the system cannot find the file specified

Can anyone shed any light on this error for me please.

Fionbarra