GF2 Overclock question

Ok, I used the coolbits registry hack to enable overclocking of my Visiontek GeForce2 MX200. I go into the screen and click the checkbox that allows core and memory clock changes. The computer reboots and I go back to that screen to adjust the values. Only thing is, when I click on the memory clock slide bar the value to the far left is 0mhz and the value to the far right is 100mhz. This is different compared to what anyone has said about what those values should be, far below what is even supposed to be default on the card. If I set it all the way to the right (100mhz) my 3dmark2001 scores turn to crap so it is actually turning the memory down to 100mhz. The only way to fix it is to actually go back to the speed selection screen and click on return to defaults. Then the checkbox for allowing changes to clock speeds is unchecked and the values are grayed out. At this time and this time only the value 175mhz shows for the core clock speed and 345mhz shows for the memory clock speed. Does this mean that the memory is defaulted to 345mhz on this card? Anyone else seen this? I'm stumped.