Dreamcast makes bad ticking sound until i HIT it! (self-boot copy problem)... HELP!

I've made a copy of Shenmue (self boot), using CloneCD and my copy, when loaded in the Dreamcast, spins and the dreamcast makes a ticking sound and sits on the Dreamcast logo screen until i hit the top of my dreamcast with my hand, and THEN it loads properly!?!

My dreamcast can load self boot discs fine, just not if i make them myself!

Can anyone tell me whats happening, and how do i fix it?

Also, my CD Burner loaths self boot disks. Is there a way to remove the self boot track and modify the ip.bin file so i can use it with the Utopia Boot Disk (all of those copys work fine on my cd burner!)