Then try them on a default style:
Create a new style with no parent:
Styles & Templates > Style Manager > Add New Style
Parent Style: No Parent Style
Title: Default vBulletin
Allow User Selection: Yes
Save
Have them select that style to use, with the plugins still off, and see if they still have the same issue.
Thanks lynne i did as you suggested still the same i am racking my brain on this one and its only the 2 admin that have this issue no one else to my knowledge