Hi, 
  
Hope you can help, we have a second (or more) hand sirius 250 desk. On powerup some hard drive noise is heard briefly, then the main LCD says: 
  
PC if Card BIOS C004 
© Zero 88 21/05/97 
------------------------- 
Zero 88 lighting ltd 
  
  
the lcd above the rotary encodors is showing all black solid characters & all the displays above the page selectors show -- 
  
Other than this the desk will not respond at all. 
  
Is there some way to flatline the desk & upload/install software again or an even easier fix ? 
  
Cheers for your help 
  
Chris