MetaTrader Price Snapback

I'm new to the MetaTrader 4 charting service. I'm having trouble when I move the chart back in time using the arrow buttons on my keyboard. When I stop the chart only gives me a few seconds then snaps back to the current price. When I back up a chart it is to study a particular event and I want to spend some time there. Any suggestions on how to stop this snap back?
Thanks for the help.

You must remove the autoscroll
- on the Tool bar
- or see Help(F1) then "auto scroll"
--- Look for "Fast Navigation" also, usefull shortcut,like F12

Hi Zeuzere,

Thanks for the help. That did the trick!