You may need to exit any programs you have running in the background to improve performance and stability. Please close background applications manually first or run in Selective Start-up.
Selective Startup
Windows XP/Vista/7
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Click Start and select Run, then type MSCONFIG and click OK.
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In the General tab:
Choose Selective Startup
Disable (uncheck) Load startup items -
Click OK and Reboot
*Important Note* When you are booting your computer in Selective Startup, please keep in mind that you are disabling every application that normally starts up with your computer. This may include firewall and security software that you would normally want to have on. After you are finished testing, you should re-enable your security software in msconfig.exe.
Mac
Activity Monitor is a GUI application included with Mac OS X. It provides graphical representations of your computer's CPU, system memory, disk activity, disk usage, and network processes. This little utility is easy to overlook, but it can help you manage your memory and processing power. Closing background processes can greatly increase game performance and stability.

How to Close Background Processes in Mac OS X 10.5, 10.6, and 10.7:
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Open the Go Menu at the top of the screen.
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Select Utilities to open the Utilities folder.
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Start the Activity Monitor application.
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Select the My Processes list from the Show choice bar.
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Highlight quit any processes which are not listed above (you may not have all the processes listed above, which is fine)
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Select Quit to kill the process.
- If you need additional assistance, please Contact Us.