Hi, I'v seen lots improvements on trunk code, I just build a new server with skype beta on FreeSWITCH Version 1.0.trunk (16848). Ubuntu 8.04 64bit. It works well. however I seen some messages on debug level console. Locking assertion failure. Backtrace: #0 /usr/lib/libxcb-xlib.so.0 [0x7f1728a0c97c] #1 /usr/lib/libxcb-xlib.so.0(xcb_xlib_unlock+0x24) [0x7f1728a0ca84] #2 /usr/lib/libX11.so.6 [0x7f1728c54260] #3 /usr/lib/libX11.so.6(XSync+0xd5) [0x7f1728c49915] #4 /usr/local/freeswitch/mod/mod_skypiax.so [0x7f1728f1f2af] #5 /usr/local/freeswitch/mod/mod_skypiax.so [0x7f1728f1fcf1] #6 /usr/local/freeswitch/mod/mod_skypiax.so [0x7f1728f2353c] #7 /usr/local/freeswitch/mod/mod_skypiax.so [0x7f1728f1bc7a] #8 /lib/libpthread.so.0 [0x7f17346663ea] #9 /lib/libc.so.6(clone+0x6d) [0x7f1734198cbd] Locking assertion failure. Backtrace: #0 /usr/lib/libxcb-xlib.so.0 [0x7f1728a0c97c] #1 /usr/lib/libxcb-xlib.so.0(xcb_xlib_lock+0x15) [0x7f1728a0ca15] #2 /usr/lib/libX11.so.6 [0x7f1728c54323] #3 /usr/lib/libX11.so.6 [0x7f1728c54a4b] #4 /usr/lib/libX11.so.6 [0x7f1728c54d75] #5 /usr/lib/libX11.so.6(XNextEvent+0x7f) [0x7f1728c3cc2f] #6 /usr/local/freeswitch/mod/mod_skypiax.so [0x7f1728f1f79e] #7 /lib/libpthread.so.0 [0x7f17346663ea] #8 /lib/libc.so.6(clone+0x6d) [0x7f1734198cbd] I will upgrade and test later. and will gather more infos and will report on jira if it's a bug or ignore if it's harmless.