Hi I am trying to connect my Roland Em-25 keyboard to a PC via a USB cable but am having a really frustrating time. First of all I'm trying to connect via Fruityloops, so I followed the instructions for the setup and FL recognized my midi keyboard alright so i enabled it. Now on one PC the signals are transmitted however it only plays randomly so is totally useless, while on my laptop the midi light in FL isnt even switching on when I play the keyboard. Any ideas what could be wrong? Thanks