Bind variables missing in TKPROF output

Hi,

I need to trace some part of an application where SQL statements using bind variables are widely used.

I used DBMS_MONITOR.SESSION_TRACE_ENABLE with waits and binds set to TRUE to start the trace (from SYS, in another session).

I got the bind variable values in the raw *.trc file, but not in the TKPROF output.

Is it the way TKPROF works, or is there some (unpublished) parameter to TKPROF to make it process the bind variables too?

Thanks for your hints.

Pavel