lavis cannon ..

[Iforion]

ok, so i finally got my lavis cannon a min ago but on the sites it say i can grind to +15.

So i tried to put grind on but not letting me does this mean something wrong?

[Jaspaller]

http://www.pso-world.com/items.php?op=viewarticle&artid=137

If you're playing on PSOGC/X/BB, it doesn't grind at all. It only grinds on the Dreamcast and PSOPC