Connecting Yamaha e303 to LMMS

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I've been having trouble with this. I've followed everything but nothing seems to work, and it's really starting to annoying me. The midi to usb cable I'm using also only has a light on the usb label, not on midi input or output. Can anyone help me?

Note: It did say it only works on windows 7- Is there perhaps a way I can run it in compatability mode?
So what operating system are you using? And exactly which "midi to usb cable" do you have?

You do know you should connect the MIDI OUT on the keyboard to the MIDI IN on the MIDI to USB cable, right ? And have you checked the settings in the keyboard to make sure it is actually transmitting any MIDI data (see p58-60 in E303 manual) ?

Can LMMS see the cable at all ? I.e. when you try to connect to it from an instrument do any names appear in the list?

Steve