
Same as above, doesn't appear to be a valid font or the font file is invalid. I just joined to show our solution to this problem we had.

Then manage the Administrator account through User Accounts in the Control Panel-delete the password, then create another one, if you want. If the Administrator account has a password and you don't know it, you can get around this by logging back on under your regular user name. Then restart the computer and the Administrator user option should appear on your login screen. Then type into the DOS box: "net user Administrator /active:yes" and hit Enter. Rather right-click it and then select "run as Administrator" in the menu that rolls down. If I remember correctly, it goes something like this: Under your regular login (if that has Administrator privileges) open a DOS box "cmd.exe". You have to go through a few hoops to get that to happen. Note: By default Vista doesn't show the Administrator user on the login screen. This is confusing to me since my regular User account has Administrative privileges.

Then I relogged in as user "Administrator" and the font installed without a hitch. I got the "not a valid font" message attempting to install a font.
