It is a stand alone indicator and should work if loaded into the indicator folder NOT the EXPERT FOLDER then restart your MT4 platform then select it out of the indicator list and load onto the chart as you normally would, you may need to flick between timeframes for it to load the 1st time perhaps. Try loading it onto a clean chart without any other indicators and see if that helps as you could possibly have another indicator that is causing a code conflict, other than that i cannot think of anything else to suggest.

good luck cja