After turning the unit on the input level meter is moving around randomly, however, the UI is functioning. I have just installed a VoiceCraft card.
Possible Problem: the VoiceCraft DSP software has not been updated to the latest version.
Solution: Check the current VoiceCraft card software version. Press the UTILITY button and use the MENU TAB buttons to go to the version page. If the version reads 0.52 the solution is simply to do a MIDI upgrade of the VoiceCraft DSP software.