pc booting problem on arcade monitor

[juice lee]

i formated installed xp and drivers for 7800gtx set resolution to 640x480 60hz, and i still getting problems when i boot with arcade monitor pluged in(bad clicking noise on the post)
it is fine if i boot with pc monitor then change it in display to the arcade monitor

i am using a j pac which is switched to 15 khz and set soft 15 khz up and arcade monitor is samsung

here is link to my cab  http://www.arcadecabinets.co.uk/index.php?option=com_content&task=view&id=12&Itemid=32 pic of cab

here is a video link of what happen  
you will see soon as ram finish, clicking start

here is link to inside cab

i have not had this trouble with arcade vga 2 pcie

thanks for your time