Solve : I have two video cards; how do I switch them??

1.	Solve : I have two video cards; how do I switch them??
Answer» I am trying to play CIVILIZATION V on my desktop computer but it is very laggy and thus unplayable. I have been told that I need to change my graphics card. However, when I GO to Device Manager, it lists the following two items under "Display Adapters": ATI Radeon 3000 Graphics ATI Radeon HD 5700 HD Series According to dxdiag.exe, my computer is currently using the first (and worse) of the two. How do I switch to the better graphics card? Or am I just running two cards at the same time? I do not understand this at all. My specs: OS: Windows 7 64-Bit Manufacturer: ASUS Model: CG1330 Processor: AMD Phenom II X6 1035T (6 CPUs), ~2.6 GHz Memory: 8192 MB RAM Thanks in advance.I fixed it by plugging in the VGA cable into the other slot. Cool that you fixed it and the Radeon 3000 is likely the integrated GPU while your Radeon HD5700 is the better video card?

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