How to I change all users to have this default setting?
 

How to I change all users to have this default setting?
About a month ago, when Daylight Savings time took effect, I started having users complain about have Security Token errors.

After reading through the various steps to correct them (which none of them worked), I decided that since it had to do with Daylights savings time, to compare the users that where complaining, to the ones that weren't. This is what I found,
The users having problems had this setting:
Automatically detect DST Setting = Y
Is DST currently in Effect = N

However, all the users not complaining had this setting:
Automatically detect DST Setting = N
Is DST currently in Effect = Y

So I change the ones that were complaining to N and Y, and everything is working great, no complaints at all.

Now the question -
1. How can I make all my users have this setting? I know I can log into each and everyone of their account and change it, but is there a easier way to do a group change?

2. Is there a way to prevent them from selecting anything but N Y?

3. I can see where in UserCP>Settings & Options>Edit Options>Date & Time Option that they have the option to change the settins to:

Auto Detect DST settings
DST correction always on
DST correction always off

So where is the other setting located? ie you have two varables possible N N, N Y, Y N, Y Y

4. Is there a way to see how everyone has theirs set? (besides looking at each and everyone?

Attached Images http://www.vbulletin.com/forum/images/attach/jpg.gif DSTexample.jpg‎ (22.9 KB)