Photo Booth stopped working!

all of sudden, photo booth won't work! launches, there's no video. quicktime player shows video fine. i'm running 10.5.8 on g5 power mac connected dell monitor, webcam used. connects on usb.

log:

code:

10/10/11 12:57:20 photo booth[1568] *** <qcnodemanager | namespace = "com.apple.quartzcomposer" | 339 nodes>: patch name "/userbackdrops" missing  10/10/11 12:57:20 photo booth[1568] *** message <qcpatch = 0x04c792d0 "(null)">: cannot create node of class "/userbackdrops" , identifier "(null)"  10/10/11 12:57:20 photo booth[1568] *** message <qcpatch = 0x04c792d0 "(null)">: cannot create connection ["output" @ "splitter_3"] ["_protocolinput_image" @ "patch_1"]  10/10/11 12:57:20 photo booth[1568] *** message <qcpatch = 0x04c792d0 "(null)">: cannot create connection ["output" @ "splitter_2"] ["inputoriginalbackgroundimage" @ "patch_1"]  10/10/11 12:57:20 photo booth[1568] *** message <qcpatch = 0x04c792d0 "(null)">: cannot create connection ["outputimage" @ "renderinimage_2"] ["inputbackgroundimage" @ "patch_1"]  10/10/11 12:57:20 photo booth[1568] *** message <qcpatch = 0x04c792d0 "(null)">: cannot create connection ["_protocoloutput_image" @ "patch_1"] ["input" @ "_protocoloutput_image"]  10/10/11 12:57:20 photo booth[1568] *** message <qcpatch = 0x04c792d0 "(null)">: cannot create connection ["output" @ "_protocolinput_previewmode"] ["_protocolinput_previewmode" @ "patch_1"]  10/10/11 12:57:20 photo booth[1568] *** state restoration failed on <qcpatch = 0x04c792d0 "(null)">  10/10/11 12:57:20 photo booth[1568] *** errors loading composition "/library/compositions/fire.qtz"  10/10/11 12:57:20 photo booth[1568] *** <qcnodemanager | namespace = "com.apple.quartzcomposer" | 339 nodes>: patch name "/userbackdrops" missing  10/10/11 12:57:20 photo booth[1568] *** message <qcpatch = 0x04c7f650 "(null)">: cannot create node of class "/userbackdrops" , identifier "(null)"  10/10/11 12:57:20 photo booth[1568] *** message <qcpatch = 0x04c7f650 "(null)">: cannot create connection ["output" @ "_protocolinput_previewmode"] ["_protocolinput_previewmode" @ "patch_1"]  10/10/11 12:57:20 photo booth[1568] *** message <qcpatch = 0x04c7f650 "(null)">: cannot create connection ["output" @ "_protocolinput_image"] ["_protocolinput_image" @ "patch_1"]  10/10/11 12:57:20 photo booth[1568] *** message <qcpatch = 0x04c7f650 "(null)">: cannot create connection ["_protocoloutput_image" @ "patch_1"] ["input" @ "_protocoloutput_image"]  10/10/11 12:57:20 photo booth[1568] *** message <qcpatch = 0x04c7f650 "(null)">: cannot create connection ["outputimage" @ "imageloader_1"] ["inputbackgroundimage" @ "patch_1"]  10/10/11 12:57:20 photo booth[1568] *** message <qcpatch = 0x04c7f650 "(null)">: cannot publish input port ["inputforegroundimage" @ "patch_1"]  10/10/11 12:57:20 photo booth[1568] *** message <qcpatch = 0x04c7f650 "(null)">: cannot publish input port ["inputoriginalbackgroundimage" @ "patch_1"]  10/10/11 12:57:20 photo booth[1568] *** state restoration failed on <qcpatch = 0x04c7f650 "(null)">  10/10/11 12:57:20 photo booth[1568] *** errors loading composition "/system/library/compositions/clouds.qtz" 

any help?

wasn't happening yesterday , can't think of have caused this...

have ~30 effects installed, they've never caused problem, , put them in months ago. no other apps using camera, , i've tried disconnecting usb cable , plugging in.

i've tried removing added photo booth effects /library/compositions no avail.

 

ok, after sleeping computer overnight it's randomly started working fine again.

 

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