MetaTrader 4 Multi-terminal Issues

 
Does anyone have performance issues with MT4 Multi-terminal? I have two instances running on a P1V 2GHZ 1 GB RAM machine, both running over 100 accounts, but only one instance running at a time. Frequently I get connections failures and freezing of the application. Does anyone run MT4 Multi with this many accounts and if so, what is the hardware configuration?
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