MT4 Broker who allows longer backtesting?

Hi, Ive tried backtesting on 5min timeframe on two different mt4's. One for interbankfx and one for ODL. Both will only allow me to go back about 3 weeks back. If i try to back further i get a blank screen saying "waiting for update". Is there any broker who lets go further back and backtest months back on mt4?

1 the generic mt4 platform from the metaquotes site (which is alpari US)
2. MBT
3. FXCM UK

that's all i know of who will give you years of data.