OK you need to make sure that sound diver
Is using the right midi port, so go to control panel system multimedia and set the default midi to whatever ever port the JV1010 is using i.e. SBlive midi out etc.
Now if the driver doesn’t pick up your JV1010 right away push the value control a couple of times until you are in performance mode. The click on rescan, if you have already passed the rescan option, go to windows1, open memory manager and everything should be OK. If not come on back and I’ll rethink.