Hi i've just been supplied with a Dell XPS15Z laptop with Windows 7 Ultimate. I've just installed XPMode and works fine. I was trying to attach a ISDN2 modem and load the drivers(isdn2 modems are old and you can only get XP Drivers and they won't load on Windows 7 as i've tried). I get a message back saying try another USB slot or reset. i've tried both options and i can't get it to Attach. I've used a PC using Virtual XP Mode and it Attaches fine and the modem works so i can't work out why this won't work correctly. Any assistance would be most greatfull.