В консоле выдает следующие
Locking assertion failure. Backtrace:
#0 /usr/lib/libxcb-xlib.so.0 [0xb6a64767]
#1 /usr/lib/libxcb-xlib.so.0(xcb_xlib_unlock+0x31) [0xb6a648b1]
#2 /usr/lib/libX11.so.6(_XReply+0xfd) [0xb726a29d]
#3 /usr/lib/j2se/1.4/jre/lib/i386/libawt.so(XineramaIsActive+0xa5) [0xb7c197d5]
#4 /usr/lib/libqt-mt.so.3(_ZN14QDesktopWidget11resizeEventEP12QResizeEvent+0x20) [0xb7584e2e]
#5 /usr/lib/libqt-mt.so.3(_ZN7QWidget5eventEP6QEvent+0x52b) [0xb7682977]
#6 /usr/lib/libqt-mt.so.3(_ZN12QApplication14internalNotifyEP7QObjectP6QEvent+0x274) [0xb75e034e]
#7 /usr/lib/libqt-mt.so.3(_ZN12QApplication6notifyEP7QObjectP6QEvent+0xce8) [0xb75e2c7c]
#8 /usr/lib/libqt-mt.so.3(_ZN12QApplication9sendEventEP7QObjectP6QEvent+0x5b) [0xb757107b]
#9 /usr/lib/libqt-mt.so.3(_ZN12QApplication16sendPostedEventsEP7QObjecti+0x25c) [0xb75e1386]
#10 /usr/lib/libqt-mt.so.3(_ZN14QDesktopWidgetC1Ev+0x87) [0xb7584ab5]
#11 /usr/lib/libqt-mt.so.3(_ZN12QApplication7desktopEv+0x5e) [0xb75e055a]
#12 /usr/lib/libqt-mt.so.3(_ZN12QApplication9constructERiPPcNS_4TypeE+0xcc) [0xb75e79ae]
#13 /usr/lib/libqt-mt.so.3(_ZN12QApplicationC1ERiPPc+0x6a) [0xb75e7d18]
#14 /home/cerberus/lib/opera/9.50-20070903.5/opera [0x806a784]
#15 /home/cerberus/lib/opera/9.50-20070903.5/opera(_ZN8QPainter4saveEv+0x19e) [0x8064c6e]
#16 /lib/tls/i686/cmov/libc.so.6(__libc_start_main+0xe0) [0xb6fa3450]
#17 /home/cerberus/lib/opera/9.50-20070903.5/opera(XMapRaised+0x31) [0x8064b11]
opera: xcb_xlib.c:82: xcb_xlib_unlock: Assertion `c->xlib.lock' failed.
opera: Fatal error on creating Qt application object.
С чем может быть связанна данная проблемма.