I was running 4 MT4 programs. One each from different brokers. It was working fine until I loaded some multi time frame indicators and all 4 locked up and ultimately I had to remove them from my computer and reload them. I was unsure what the problem was but as soon as I loaded a non lag MA indicator the performance of the computer is dismal.

I tried to load a multi time frame Centre of Gravity onto a chart just now and that was it, locked up again, CPU usage 100%! It is a four year old computer but it sounds like time to upgrade.

ian