OC Genie is hit and miss, unreliable. Best way to overclock is through the BIOS. Before you that, make sure you get a good aftermarket cooler. Are you using the stock cooler? You'll have to monitor temps.
I also have an X4 955BE that is completely stable at 3.8 Ghz. In the BIOS all you have to do is change two settings - multiplier to 19 and the cpu volatge to 1.375.
You may need to go to 1.38 on vcore but I've never had to go higher than that although the vid (set by the factory) on chip is 1.4
im using a CoolIlt ECO ALC i got at Frys for $44 after a $20 rebate, il see if i cant tweak the BIOS on my own, this is my actual first experience with overclocking since my last system sa a Pentium 4 s478 that i never tried to OC
prime 95 at 3.2ghz gets me under 40C il see that i get when i OC to 3.8