Hello Henry, and welcome to Seven Forums.
The
AllSitesCompatibilityMode DWORD is the registry entry that is added and set by Group Policy for all users instead of the tutorial only setting the
MSCompatibilityMode DWORD from the "Compatibility View Settings" GUI. I have added the
AllSitesCompatibilityMode entries to the REG file download that will also turn off the Group Policy setting as well to help others that run into the same issue you did.
Group Policy locations for "Turn on Internet Explorer 7 Standards Mode""
Computer Configuration\Administrative Templates\Windows Components\Internet Explorer\Compatibility View
and
User Configuration\Administrative Templates\Windows Components\Internet Explorer\Compatibility View
#2 is most likely the one that fixed this for you. The entries you have with the longer S-1-5...... number is user account and computer specific, and cannot be used by anyone else.
Thank you,
Shawn