Hi @JaneCavanaugh - did you get this resolved? I would echo @MaryJoKrueger in that I have had success pretty much every time I've used this.
One question for all the IT types out there, I have actually been asked by the IT Consultant at a client if I knew what the Group Policy would look like to modify this for all users. I said I would see if I can find out, and this is pretty much the only reference I can find on 90 Minds regarding this issue.
Any thoughts, other than the obvious?