Our customer has RMX 4000 with one MPMx-D board. They have interesting situation, after server startup the first three conferences are OK, but 4th and others have problems like picture freeze regulary, there is pixalization and problem with voice. All conferences start one-by-one (second conference is started after termination of the first, third conference is started after termination the second etc.) and server has enough resources for conference. That situation appear only in Continuos Presence conference, Voice Activating mode is OK.