[AUCTeX] preview not working

[Peter Horst]

I've installed the current Windows Emacs+Auctex precompiled bundle from:

ftp://alpha.gnu.org/gnu/auctex/emacs+auctex-w32-2006-03-09.zip

By and large it seems to be working, except for preview mode. When I try 
to generate document previews, it seems to go through its process fine 
until the very last step, where it fails with the message:

DviPS sentinel: Searching for program: no such file or directory, 
GSWIN32C.EXE

The Auctex customization menus tell me Auctex is looking for ghostscript 
as gswin32c.exe, as above. I've got gswin32c.exe installed at c:\program 
files\gs\gs8.51\bin\gswin32c.exe.  How do I connect the preview 
mechanism with my installed copy of ghostscript, if this is in fact the 
prob?

Thanks!