I have been using MT4 for a while, on most computers I can run 5-10 MT4 clients without any problem, even on old computers. On one of my computers which is sufficient in power, speed, memory, etc. I can run at most 3 MT4 Clients. When I run a 4th client when I try to switch between charts my screen freezes and i must double click on the tab to get the chart up or to switch to another one.

I am assuming this has something to do with my system and graphics card. I have a nvideo 7800 gt, dual core pc 4 gb.

Does anyone else have this problem or does anyone know why? or a solution?