Using Omega 2478 drivers right now because they come with a built in overclock program. Rage3d cause windows to not boot

Powerstrip would lower the mem clock to 230 mhz at random intervals wich cause my monitor to have lines all over and turn purple.
Omega 2478's are supposed to be 3.7's.
I don't know if it is my overclcok or my drivers but I get horrid "lines" more like "patches" when running benchmarks for long times. They just flash for an instanst, but they occur all over. It only overclcoked to 415/350.
PC this is a Built by ATI radeon 9800 Pro.