I don't think it's your hardware or firmware SnowDigger! I had an old CFA-634 USB running fine with AIDA64, but recently bought another one (also USB, was just swapping drive bay bezel to a black one to move the older silver one to a different case) and had the same problem as you with the new one - Lines 2-4 displayed on lines 1-3 of the actual display, and the first line was gone. Old (working) hardware: SKD204-634 V2.2, firmware 2.0i ("FW 2.0i") New (not working) hardware: 2013-05-20PCB v3.2, firmware 3.2 ("fw 3.2") Both are Device ID 0403-FC09 One thing I noticed was different, aside from hardware and firmware - my old one that was working had a custom boot screen. I reset my old one to not use the custom boot screen (boot to Crystalfontz logo) and then I got the same problem with the missing first line! So it seems without a custom boot screen, the AIDA64 output is "shifted up" one line so you don't see the first line and the bottom line of the display is just blank. Here's how I fixed it on the new screen: Completely exit AIDA64 or disable Crystalfontz LCD support for now. AIDA64 needs to not be communicating with the LCD while we do this. If you haven't already, download and install the Crystalfontz LCDUSB driver and connect your LCD. Install CrystalControl2 from Crystalfontz It shouldn't matter whether you install as Startbar tray application or not. Don't install the plugins - we won't be using them Ignore the prompt to reboot (at least I didn't have to in Win7 Pro 64-bit) In the Start menu, right-click All Programs>CrystalControl2>Configure CC2 and Run as Administrator (may not be necessary if you did not install as Startbar Tray application). That should put a Red Crystalfontz icon in your tray. Right-click it and choose Start CrystalControl2 The icon should change from Red to Blue. If you selected user-space option, you might also get a green icon as well. Right-click the Blue icon and choose Configure... Click Add New under LCD Module Selection and add your module - it should show its name and COM port number in the list. Click Add New under Screen Selection Create a simple (or fancy, if you like) screen then click OK Click Restart CrystalControl2 You should see your screen on the LCD now. Close the CrystalControl2 configuration window. In the tray, Left-click the Blue Crystalfontz icon Click Save Boot State in the pop-up. Read and understand the warning, then click OK. In the tray, Right-click the the Blue Crystalfontz icon and select Stop CrystalControl2 (or manually stop the CC2Service service) The icon should change from Blue to Orange to Red If you had a blue icon, it should disappear. In the tray, Right-click the the Red Crystalfontz icon and select Remove Tray Icon Uninstall CrystalControl2 from Control Panel>Programs and Features (aka Add/Remove Programs) Check your Start menu. If the CrystalControl2 group is still there, Right-click it and Delete it. Run AIDA64 or re-enable Crystalfontz support in AIDA64 Bask in the glory of ALL FOUR lines! Note that you can set a user boot screen via serial commands too, if that's your preference. The key seems to be just having a custom boot screen selected, for whatever reason. Note 2: Crystalfontz used to have a beta Boot Screen Designer application, it's no longer on their website (as the functionality is already in CrystalControl2) and I couldn't get it to work, but if you already have it installed it might be worth trying. Now I have provided this clue, maybe the developers can figure out what the difference is and avoid requiring this workaround in the future.