had my cabinet up n running (megalo 410). until my hard drive died and i needed to restart all over!

anyways i reinstalled winxp/ hyperspin and shelled it using instantsheller.
but when i start the cabinet all seems fine the screen images are static. until hyperspin starts? it keeps on flickering and wont hold the video image, ive tried to manually stop it with the monitor settings but still no good? would this be the arcadevga driver issues or jpac issues? sorry just a bit lost.
any info would be helpful
cheers!