[AUCTeX] Auctex cannot call LaTeX

[José Carlos Santos]

Hi,

At one of my machines (Windows XP), I replaced fpTeX by MiKTeX 2.5. Now,
if I open a LaTeX file with Emacs and try to compile  it, I get an
error like:

Running `LaTeX' on `test' with ``latex  -interaction=nonstopmode 
"\input" "test.tex"''
latex: The file system path could not be retrieved.

LaTeX exited abnormally with code 1 at Thu May 17 19:31:20

I have the same problem when I try to preview a .dvi file, but *not*
when I try to preview a .pdf file.

Furthermore, I only have this problem when I work as an ordinary user.
If I work as an administrator, all works well. Besides, the two _emacs
files (the one that corresponds to the administrator and my personal
one) are identical.

Any ideas?

Best regards,

Jose Carlos Santos