I have recently installed AtiTools. I am currently running Vista Home Premium Edition, and would like to attempt an overclock of my ATI X800XL graphic card. Before I start, I would ask if some of the experienced users could give me a little advice. When attempting to use AtiTools, is it best to shut down all running and start up applications? I have read the WIKI page regarding the use of AtiTools, I just want to make sure I am doing everything correctly. After I have successfully achieved a stable overclock of my card - is it safe to use the settings at all times? Or do I only use the settings when gaming? I am not an avid PC gamer, I primarily do video editing (Pinnacle Studio 10). If it is safe to continually use a stable overclocked graphic card this would be my preference versus changing the setting for each application that I use. I look forward to your input, and thanks in advance for your advice.