DST Help please, +rep

Hi,

I use vBulletin and some of my users are getting:

Quote:

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vBulletin Message
Your submission could not be processed because a security token was missing.
If this occurred unexpectedly, please inform the administrator (http://www.talk-wide.com/sendmessage.php) and describe the action you performed before you received this error.

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I know to go to Options > DST always on or always of but I can't do that all the time, anybody know of any perm solutions?

Thanks,

Please Note: I saw a thread on this and can't find it, tryed searching it ect.