Apple Logic Pro /LogicExpress Discussion

Hi All,
   Sorry to add a sense of urgency to this loveley cafe 
environment (nice job!) but I have an urgent problem I was 
hoping someone could help me with: Suddenly my Logic (6.1.0 
on a G4
 and going through a digi001) will not recognize any
 inputs except 1-10. Just a couple weeks ago I recorded
 digitally with inputs on tracks 17-18 and now suddenly
 it lists all inputs after 10 as "grey" and
 inaccessible. 
 This is deeply frustrating as i'm on a tight time
 schedule. ANY ideas/solutions will be greatly  and
 deeply appreciated,
 Thanks
 Pally
 lebraman@...