Yes, I changed the trace attributes in the web.config to turn on.
<trace enabled="true" requestLimit="10" pageOutput="true"
traceMode="SortByTime" localOnly="true" />
It seems to run, then stop. Then after a few minutes it turns back on
again. I just noticed the attribute requestLimit. Maybe it has something to
do with this problem.
I cannot explain why tracing on the server (tracing to the page) goes on and
off. When it is not working the trace.axd seems to still work however.