Problem setting default printer in Vista

[DH NYC]

When I attempt to install ANY print driver in Vista Ultimate, I have the
following problem:

1) The printer cannot be set as a default in my administrator account. When
I select "Set as default printer" through "Control Panel", nothing happens.
2) When I attempt to print a PDF or photo, the printer is not recognized at
all.
3) I CAN print from Word, etc., but must select the printer each time from
the drop down menu.
4) Oddly, the printer automatically sets as my default in my "Guest" account
when I install the driver. All funtionality works fine in the guest account.

I have checked all the various permissions and cannot determine why I
cannnot select a printer as my default in my administrator account.

Any ideas out there? Thanks!

 

[DH NYC]

Tried that, but even as the only printer option this "can't set a default"
problem still occurs.