I just bought a new Laptop that runs on win7. I thought my lexicon alpha's broken but I used it on our 2 other desktops that runs on windows xp and it worked perfectly fine. Lexicon alpha is so user friendly that I didn't need any drivers to make it run on our 2 other desktops on windows xp. First try on my laptop it didn't work. I installed the driver and still didn't work. The sound always comes out of the laptop's speakers. My lexicon alpha's responding 'cause the light on it works.. Oh another thing, when I plug the lexicon alpha on my laptop it says "No audio output device is installed" Whenever I unplug my lexicon, everything goes back to normal. I already installed the correct driver twice already. My desktop didn't need a driver to make it run. I can't record on my desktop decently 'cause it's too slow when I play all instruments at once.