Ok im running x64 of win7 rtm and installed lcd writer with nmediapc L.I.S MCE and tried both the hd***.dll's and only the 32-bit one says it does L.I.S and i think i read that the 32 bit one is the one to use even though its a 64 bit system? I got the 2 drivers working once i installed it with driver signing set to test mode, i just signed the drivers and the both loaded up fine. I checked the windows startup and application logs in the event viewer. After i signed the drivers they loaded up fine. I then found the lcdwriter app appeared to load, but my lcd did not appear to be affected. I.E., it did nothing. So I thought i should check here. I was running the mplay software before. Oh and its a serial usb device, so im not sure if its supported? I thought since L.I.S MCE was supported that it would support my device?