HELP Messiah2 problems

[pbjunky866]

I installed a messiah 2 myself on a V7. Ok sometimes my backups will work the I will press the blue button to put in a new disk (another backup) then press reset and some times the game will boot and other times it will go to the browser screen and have a crackling noise the go to a screen with a pic of the disk. I will select the disk then it will just go back to the same screen and a origanl wont boot. I really need some help!