Experience Bar Auto Changes
 

Hi,
Since re-installing computer and game, anytime I do anything in the game the Experience Bar keeps changing from Adventure Experience (orange) to one of the other styles. WHY?
If I make something, it changes to Tradeskill Experience (purple)
Kill things, it sometimes changes to Alternate Advancement Experience (green)

Is there a setting to stop this and if so, where ?

Thanks

Go to Options (Alt+O) > User Interface > Experience Bar and uncheck "Switch as XP is gained." If you don't see this setting, toggle Advanced Options using the small button at the top of the Options window.