[Freeswitch-users] Cpu peak to 100% Openzap E1 R2

Dear All, I got problem about openzap. I plan to use 4E1 R2 (Phone EQ card). I use zaptel driver from http://e400p.phoniceq.com/driver/ (1.4.12.1) and freeswitch 1.0.5 pre 7 My Server Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHz and 2 GB memmory. when i start freeswitch if enable echo cencel in zt.conf CPU peak to 100% when i disable echo cancel FS can start but when first call incominng got 100% again. Someone can help me? BG Dome