It worked! Thank you very much

I recently bought a USB n64 controller. But when i try to start a game it directly goes back to the recalbox homescreen. The controller works fine with every other platform.  When I use my xbox or ps3 controller the n64 emulator works. I changed my emulator to mupen64plus and configurated it exactly like this tutorial (the guy uses the same controller) http://powerpi.de/forum/download/file.php?id=1261&sid=91a0b7f149aab6be4603387e5f1c3da9&mode=view , but it didn't change anything. I have the feeling that none of the changes i did for the n64 emulator were successful (e.g. it's still 4/3 ratio even if 16/9 is selected) Thanks for any kind of response or help