[ivdok@localhost ~]$ grep '(EE)' /var/log/Xorg.0.log
    (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(EE) [mi] EQ overflowing.  Additional events will be discarded until existing events are processed.
(EE)
(EE) Backtrace:
(EE) 0: /usr/bin/X (xorg_backtrace+0x49) [0x81d72a9]
(EE) 1: /usr/bin/X (mieqEnqueue+0x213) [0x81b7493]
(EE) 2: /usr/bin/X (QueuePointerEvents+0x6d) [0x8090ead]
(EE) 3: /usr/bin/X (xf86PostMotionEventM+0x24b) [0x80ca1eb]
(EE) 4: /usr/lib/xorg/modules/input/evdev_drv.so (0xafabd000+0x3bcd) [0xafac0bcd]
(EE) 5: /usr/lib/xorg/modules/input/evdev_drv.so (0xafabd000+0x52e6) [0xafac22e6]
(EE) 6: /usr/bin/X (0x8048000+0x71ab5) [0x80b9ab5]
(EE) 7: /usr/bin/X (0x8048000+0x9c22b) [0x80e422b]
(EE) 8: linux-gate.so.1 (__kernel_sigreturn+0x0) [0xb778e400]
(EE) 9: /usr/bin/X (0x8048000+0x1934f0) [0x81db4f0]
(EE) 10: linux-gate.so.1 (__kernel_sigreturn+0x0) [0xb778e400]
(EE) 11: /usr/lib/xorg/modules/glesx.so (0xb4575000+0x342680) [0xb48b7680]
(EE) 12: /usr/lib/xorg/modules/glesx.so (0xb4575000+0x1d8c25) [0xb474dc25]
(EE) 13: /usr/lib/xorg/modules/glesx.so (0xb4575000+0x1d9646) [0xb474e646]
(EE) 14: /usr/lib/xorg/modules/glesx.so (0xb4575000+0x1d9a1b) [0xb474ea1b]
(EE) 15: /usr/lib/xorg/modules/glesx.so (0xb4575000+0x179bff) [0xb46eebff]
(EE) 16: /usr/lib/xorg/modules/glesx.so (0xb4575000+0x18b2a9) [0xb47002a9]
(EE) 17: /usr/lib/xorg/modules/glesx.so (0xb4575000+0xf17a9) [0xb46667a9]
(EE) 18: /usr/lib/xorg/modules/glesx.so (0xb4575000+0x145a2a) [0xb46baa2a]
(EE) 19: /usr/lib/xorg/modules/glesx.so (0xb4575000+0x145d76) [0xb46bad76]
(EE) 20: /usr/lib/xorg/modules/glesx.so (0xb4575000+0x7702b) [0xb45ec02b]
(EE) 21: /usr/lib/xorg/modules/glesx.so (0xb4575000+0x6a6c8) [0xb45df6c8]
(EE) 22: /usr/lib/xorg/modules/glesx.so (0xb4575000+0x68b9a) [0xb45ddb9a]
(EE) 23: /usr/lib/xorg/modules/glesx.so (esutDeleteSurf+0x27) [0xb45dba37]
(EE) 24: /usr/lib/xorg/modules/glesx.so (0xb4575000+0x5b9dc) [0xb45d09dc]
(EE) 25: /usr/lib/xorg/modules/glesx.so (glesxDeleteSharedAccelSurf+0x27) [0xb458a777]
(EE) 26: /usr/lib/xorg/modules/drivers/fglrx_drv.so (0xb6570000+0x3f518b) [0xb696518b]
(EE) 27: /usr/lib/xorg/modules/drivers/fglrx_drv.so (0xb6570000+0x3f53e8) [0xb69653e8]
(EE) 28: /usr/lib/xorg/modules/drivers/fglrx_drv.so (xdl_xs113_destroyPixmap+0xbd) [0xb69643bd]
(EE) 29: /usr/bin/X (0x8048000+0x1128a1) [0x815a8a1]
(EE)
(EE) [mi] These backtraces from mieqEnqueue may point to a culprit higher up the stack.
(EE) [mi] mieq is *NOT* the cause.  It is a victim.