>opens up but wait until after 12:00 am when a new 24 hour period begins.
So we are losing >time on our backup window because Calendar Based
Scheduling only allows for 1 backup per 
>24 hours for a given client in a given policy.  

...in a given schedule.  I have implemented policies where, for example,
full backups were run 12am-5am and then 5am-10am (don't ask ;)  These were
two different schedules in the same policy and both ran without problems.
That doesn't address your issue but if you are in a pinch, you could
temporarily break your days up into alternating schedules (i.e., one
schedule does Mon/Wed/Fri and the other Tue/Thu/Sat or whatever).  

Of course, it would be better to find and fix the problem, but that is one
possible temporary workaround.

--
 Drew Fabbro [fabbro.andrew AT cnf DOT com]
 Unix Systems Group
 Desk: 503-450-3374
 Cell: 503-701-0369