Asterisk "Crystal Recording Interface" Debugging

Hello, I installed Asterisk 1.6.0.13 with CDR MySQL support. I also downloaded and installed from [login to view URL] the CRI software package. My status: Messages stored in the voicemail folders are accessible by the voicemail users directly, but calls that are recorded into the /var/spool/asterisk/monitor can not be played (the "Play Call" Button doesn't appear), although the calls are listed in the CRI call monitor page (taken from cdr_mysql). I need help in fixing/debugging it. My suspicion is that it has something to do with the file names of the recorded calls in the monitor folder. I use the following exten commands to set the file name: exten => _X.,1,Set(CALLFILENAME=${STRFTIME(${EPOCH},,%Y%m%d-%H%M%S)}_${CALLERID(number)}_${EXTEN}) exten => _X.,n,Monitor(wav,${CALLFILENAME},m) Someone that dealt with this or that knows PHP very well can probably sort this issue out within minutes. All the software I used is available for download, so can be tested or reviewed on your own server. Thanks, David