I have a blank LCD.  The ribbon controller will move the cursor in SONAR and the buttons will start and stop Play and I can rewind and move up and down thru tracks and the Solo, Record and Mute buttons work.  But the fader does not work and there are no LEDs over the Pan, Auto buttons, nor do they work, and the LCD is blank.
I am using SONAR on a Windows Vista i7 Sweetwater computer and I re-downloaded and installed the driver Version 1.3.
What is wrong?  What can I do?