No bell/alert sound in Karmic with visual effects turned on

Same for me: with compiz/visual effects turned on, no alert sound is audible. With compiz/visual effects tuned off, the alert sound is audible. Therefore, it might be a compiz problem.

Architecture: amd64
CompizPlugins: [core,move,resize,place,decoration,animation,ccp,dbus,mousepoll,gnomecompat,png,svg,imgjpeg,text,commands,neg,video,wall,snap,scale,scaleaddon,expo,staticswitcher,regex,resizeinfo,workarounds,ezoom,vpswitch,extrawm,fade,session]
DistroRelease: Ubuntu 9.10
MachineType: LENOVO 8744HDG
Package: compiz 1:0.8.4-0ubuntu2
PackageArchitecture: all
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
PciDisplay: 01:00.0 VGA compatible controller [0300]: ATI Technologies Inc Radeon Mobility X1400 [1002:7145]
ProcCmdLine: BOOT_IMAGE=/vmlinuz-2.6.31-15-generic root=/dev/mapper/karmic-root ro quiet splash
ProcEnviron:
 SHELL=/bin/bash
 PATH=(custom, no user)
 LANG=de_DE.UTF-8
ProcVersionSignature: Ubuntu 2.6.31-15.50-generic
RelatedPackageVersions:
 xserver-xorg 1:7.4+3ubuntu7
 libgl1-mesa-glx 7.6.0-1ubuntu4
 libdrm2 2.4.14-1ubuntu1
 xserver-xorg-video-intel 2:2.9.0-1ubuntu2
 xserver-xorg-video-ati 1:6.12.99+git20090929.7968e1fb-0ubuntu1
Uname: Linux 2.6.31-15-generic x86_64
UserGroups: adm admin cdrom dialout libvirtd lpadmin plugdev sambashare
XorgConf: Error: [Errno 2] No such file or directory: '/etc/X11/xorg.conf'
dmi.bios.date: 09/19/2007
dmi.bios.vendor: LENOVO
dmi.bios.version: 7IET31WW (1.12 )
dmi.board.name: 8744HDG
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr7IET31WW(1.12):bd09/19/2007:svnLENOVO:pn8744HDG:pvrThinkPadT60:rvnLENOVO:rn8744HDG:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 8744HDG
dmi.product.version: ThinkPad T60
dmi.sys.vendor: LENOVO
system: distro = Ubuntu, architecture = x86_64, kernel = 2.6.31-15-generic

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug 301174, so it is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.