Recording issue in gvc3202


i am using gvc3202 an and my issue is while i play my recording of conference i am unable to see the participant view when presentation is running.
eg- i make a video conference and participant are added and i started recording after few minute i run my presentation (ppt) and then i turned off ppt.
so when i play that recording i m able to see the participant video recording but as the ppt started the participant video doesnt record its only record the audio of paritipant and ppt… but i want both video + audio as well as ppt