ok, that's easy to fix. i had that problem too. first, make sure that your psp is plugged directly into your pc, and not through a hub. then, go to your desktop, right click on "my computer" and select properties. on properties, click hardware and then go to device manager. find where it says PSP Type B. I'm not sure where it'll be but it shouldn't be too hard to find. Or, it might just say USB device. Click on it, go to driver, and click install driver or update driver or whatever choice it gives you. Tell it that you want to choose where the driver is, go to the RemoteJoySDL folder, then the LibUSB folder, select the proper driver for your os (regular or 64 bit) and then install the driver in that folder. You should be good to go then.