I have a Geforce4 64MB video card. I have enabled the overclocking menu and I have a couple of question about it. I have 2 sliders, one is Core Clock Frequency and is set to 250 Mhz. The other is Memory Clock frequency and is set to 332 Mhz (these are the default settings). What should I set these 2 sliders to? Will I really notice any difference? What kind of problems could I encounter when overclocking and are the problems common (do they happen to a lot of users)? Thank you.