I have a G5 Power Mac running Tiger which is happy with all of both IG Index's charts and ETX Capital's charts. I also have a MacBook Pro running Leopard which is happy with IG Index's simple charts but gets stuck with IG's advanced charts and also doesn't like ETX's advanced charts either.
That's interesting. I'm using Firefox on both computers because on the G5 running Tiger the whole IG platform would freeze-up in Safari. By default I have used Firefox on the MacBook Pro running Leopard, so maybe I should try Safari on that!
i use ig, capitalspreads and marketindex on different macs, the only issue i have, is sometimes ig´s advanced charts slow down or even freeze my system. i also run mt4 platforms through parallels.