"help functionname" giving errors on windows vista??

[bharat]

Dear All,

   I am facing a strange problem on the help function. Summary
   is as it goes,,, if I say.....

   > help plot

   I get the following error,

   AllocationBase 0x0, Baseaddress 0x715B0000, RegionSize 0x150000, State
0x10000
   D:\install\octave\msys\bin\sed.exe: *** couldn’t reserve space for
cygwin's heap
   win32 error 0

   D:\install\octave\share\octave\3.0.1\m\plot\plot.m

==================================================================

   What could be the problem? I am running octave-3.0.1 on windows vista
home edition.

   The exe was downloaded from octave-forge (non-cygwin version).

   Do I need to install cygwin for help to function properly??

Regards
Bharat Pathak