Why do the Meta Trader 3 and Meta Trader 4 charts differ?
The charts are built In MetaTrader 3 and MetaTrader 4 by different programs:
1. In MetaTrader 3 — High = max Ask, Low = min Bid, Open and Close = (Bid+Ask)/2.
2. In MetaTrader 4 — the charts are built using only Bid price.
