You might be out of luck for awhile on this one. Dragon Quest 7 (aka Dragon Warrior 7) isn't out, except for in Japan, yet. Unless someone had an import and had figured this out, I doubt if anyone would know what was going on. Sorry. BTW the game isn't due out here in the USA until the fall of 2001. It's on my must have list, I'm gonna pick it up as soon as it is out.
P.S. I hate to ask this, but when you say a backup, is this a backup from a copy you own? Or is it an illegal backup? the reason I ask is because illegal copies and backups are known to have problems. This is most likely due to the way they were copied. EPSXe has trouble w/many of these illegal versions but the orginal games it runs just fine. The other reason I ask is because if it is an illegal backup then it is forbidden to dscuss it on these boards. This is the wishes of Bobbi the web master/owner, all of the admins, and the other members of these boards.
If it is a legal backup (from a copy you own), then please accept my apologies for bringing this up.