Problems installing Canon G3 driver/software

I am using Windows2000 and I recently purchased a Canon G6 digital camera.

I loaded the software which appeared to install correctly. Rebooted the
computer and then connected the
camera. This should then have completed the installation of the Twain
driver, but it failed before completion with the words 'Upgrading Device
Driver wizard. An Error Occurred during the Installation. Access Denied'.
I have an older Canon G3 camera driver & software installed on the same
machine, but obviously
don't have it connected when I try to install the G6

I am the sole user of this machine; I do not use a password, and the
question of administrative privilages does not arise. At least I don't think
so, as I have never had problems of this kind when instsllling software in
the past!

When I connect the G3 to my PC (after the failed installation of the G6),
the usual window opens presenting me with a list of programs which I can use
with the G3, but it no longer shows the Zoom Browser - which has now been
upgraded by the G6 installation to a newer version.
The only way I can now download pictures from my G3 is via the Canon File
Viewer Utility.

The problem I now have, is that I am still unable to load the twain driver
for the G6, and the software that previously worked ok on the G6, does not
function correctly (since upgrading) on the G3.

I have tried uninstalling the driver and software for the old G3 before
installing the G6, but I still have the same problem.
I have also tried installing the new version of the Zoom Browser, on it's
own - without any of the other G6 software or it's driver, but the G3 still
does not have access to the Zoom Browser.

I took the camera and software disc to the shop where it was purchased, and
it installed and worked fine on their Windows XP machine, so I obviously
have a conflict somewhere on my Win2k machine.

I suspect there is an item somewhere in the Registry or 'C' Drive lingering
from a previous installation; I would like to know what to look for.

I have been in touch with Canon, and they have suggested the obvious, such
as disabling the antivirus and firewall - which I have done, but nothing
really constructive has come out of our discussions. My local dealer
suggested I re-install Win2k. That on it's own would be no real problem, but
loading all my other software and updates would take a week or more.

I don't expect anyone on this NG come up with a magic solution for my
particular PC, but perhaps someone has had roughly similar problems, and I
would be interested to hear how they resolved them.

Thanks in advance for any suggestions.

V.G.





..



I have tried just about every sequence of software installation to overcome
this problem, but without success so far. Getting desperate!