second controller issues

[tony971]

I'm using a mayflash controller adapter with original n64 controllers on windows. This adapter has two ports consolidating down to a single usb. In the windows sdl, each controller is viewed as a separate device. PJ64 2.1.0.1 recognizes that there are two controller ports (USB GamePad #1 and #2) and even lets me button map using each controller independently. However, when I run a game, the second controller is completely ignored and the "controller is plugged in" box unchecks itself. Any idea what's going wrong?