Hi Cja.

I don't know if you are aware but if you had G#MACD.mq4 to some charts it puts MetaTrader at 100% CPU whenever you changed back to the profile.

Maybe you should add a maxbars variable to the calculations does not include all the data.

I've a Core 2 Quad cpu with 4GB RAM. I've 22" monitor and one profile with 9 charts (3x3) with a Guppy template (lots of MA's). Then I added G#MACD. When I open MetaTrader in this profile it goes 100% for quite some time.

I removed the G#MACD and it changes ok.

Thanks,
Lugopt