From PmCal.php
The sbuinclude in line 1066 looks like an error - all the rest are
subinclude
1065 if ($istoday) {
1066 $todaycl=sprintf(" ${PmCalPrefix}sbuinclude%stodaytextlink
${PmCalPrefix}subincludetodaytextlink",$cal);
1067 }
Things work but probably this area doesn't get used often.
John