"Insufficient privilege to access this directory"

I amtrying to install Adobe Acrobat 6.0 on my laptop. In the middle of the
installation I get an error message "Error 1303: The installer has
insufficient privilege to access this directory: C:\Documents and
Settings\All Users\Documents\Adobe PDF 6.0. The installation cannot continue.
Log on as an administrator . . ."

I am the sole user, and my user profile recognizes me as the administrator.
I had no difficulty installing it on my desktop (after first trying on the
laptop, so it was not because it was a second installation of the program).
Both computers are Dell Pentium 4 with WinXP Home. Thanks for any suggestions.

instead of trying to install it at
C:\Documents and Settings\All Users\Documents\Adobe PDF 6.0
try installing it
C:\Program Files\Adobe PDF 6

this should work

Rohan