Apache::DProf missing some subroutines

[John ORourke <suppressed>]

Hi folks,

Any idea why Apache::DProf would be failing to list some subroutines 
that are definitely being called, in the tmon.out file?

I grepped all sub references from tmon.out and it's listing my method 
handlers, it's listing some of my constructors, and its listing some 
object methods, but there are loads missing.  I know they should be 
there because some of the listed subs are only called from non-listed ones!

The only things I'm doing which might affect it are:
 - a fair bit of subclassing, but that doesn't explain many of the 
missing ones
 - using Error.pm - could this be interfering?

cheers
John