Just crashed, with Kernel panic
while I was reading this forum with Safari !! Screen went dark with a message to reboot the system by pressing the button on the front of the machine...

Dual 1.25 G4, 10.3.3 still fuming
Edited: the culprit seems to be retrospect 5.1 which was running in the background, here the crash log
Driver Update 5.2 /Volumes/Retrospect Driver Update 5.2
Mar 16 11:20:49 localhost kernel: retrospectcdfs_root; mp 0x171107c
Mar 16 11:20:49 localhost kernel: retrospectcdfs_root; mp 0x171107c
Mar 16 11:20:49 localhost kernel: retrospectcdfs_getattr: entering
Mar 16 11:20:49 localhost kernel: retrospectcdfs_getattr: exiting
Mar 16 11:20:49 localhost kernel: retrospectcdfs_root; mp 0x171107c
Mar 16 11:20:49 localhost kernel: retrospectcdfs_getattr: entering
Mar 16 11:20:49 localhost kernel: retrospectcdfs_getattr: exiting
Mar 16 11:20:49 localhost kernel: retrospectcdfs_root; mp 0x171107c
Mar 16 11:20:49 localhost kernel: retrospectcdfs_getattr: entering
Mar 16 11:20:49 localhost kernel: retrospectcdfs_getattr: exiting
Mar 16 11:20:49 localhost kernel: retrospectcdfs_root; mp 0x171107c
Mar 16 11:20:49 localhost kernel: retrospectcdfs_getattr: entering
Mar 16 11:20:49 localhost kernel: retrospectcdfs_getattr: exiting
Mar 16 11:21:11 localhost kernel: retrospectcdfs_root; mp 0x171107c
Mar 16 11:21:11 localhost kernel: retrospectcdfs_getattr: entering
Mar 16 11:21:11 localhost kernel: retrospectcdfs_getattr: exiting
Mar 16 11:21:11 localhost kernel: retrospectcdfs_root; mp 0x171107c
Mar 16 11:21:11 localhost kernel: retrospectcdfs_getattr: entering
Mar 16 11:21:11 localhost kernel: retrospectcdfs_getattr: exiting
Mar 16 11:21:20 localhost kernel: retrospectcdfs_root; mp 0x171107c
Mar 16 11:21:20 localhost kernel: retrospectcdfs_pathconf: aname = 4
Mar 16 11:21:20 localhost kernel: retrospectcdfs_root; mp 0x171107c
Mar 16 11:21:24 localhost kernel: SAM Multimedia: READ or WRITE failed, ASC = 0x00, ASCQ = 0x00
Mar 16 11:21:25 localhost last message repeated 4 times
Mar 16 11:21:25 localhost kernel: disk1: I/O error.
while I was reading this forum with Safari !! Screen went dark with a message to reboot the system by pressing the button on the front of the machine...
Dual 1.25 G4, 10.3.3 still fuming
Edited: the culprit seems to be retrospect 5.1 which was running in the background, here the crash log
Driver Update 5.2 /Volumes/Retrospect Driver Update 5.2
Mar 16 11:20:49 localhost kernel: retrospectcdfs_root; mp 0x171107c
Mar 16 11:20:49 localhost kernel: retrospectcdfs_root; mp 0x171107c
Mar 16 11:20:49 localhost kernel: retrospectcdfs_getattr: entering
Mar 16 11:20:49 localhost kernel: retrospectcdfs_getattr: exiting
Mar 16 11:20:49 localhost kernel: retrospectcdfs_root; mp 0x171107c
Mar 16 11:20:49 localhost kernel: retrospectcdfs_getattr: entering
Mar 16 11:20:49 localhost kernel: retrospectcdfs_getattr: exiting
Mar 16 11:20:49 localhost kernel: retrospectcdfs_root; mp 0x171107c
Mar 16 11:20:49 localhost kernel: retrospectcdfs_getattr: entering
Mar 16 11:20:49 localhost kernel: retrospectcdfs_getattr: exiting
Mar 16 11:20:49 localhost kernel: retrospectcdfs_root; mp 0x171107c
Mar 16 11:20:49 localhost kernel: retrospectcdfs_getattr: entering
Mar 16 11:20:49 localhost kernel: retrospectcdfs_getattr: exiting
Mar 16 11:21:11 localhost kernel: retrospectcdfs_root; mp 0x171107c
Mar 16 11:21:11 localhost kernel: retrospectcdfs_getattr: entering
Mar 16 11:21:11 localhost kernel: retrospectcdfs_getattr: exiting
Mar 16 11:21:11 localhost kernel: retrospectcdfs_root; mp 0x171107c
Mar 16 11:21:11 localhost kernel: retrospectcdfs_getattr: entering
Mar 16 11:21:11 localhost kernel: retrospectcdfs_getattr: exiting
Mar 16 11:21:20 localhost kernel: retrospectcdfs_root; mp 0x171107c
Mar 16 11:21:20 localhost kernel: retrospectcdfs_pathconf: aname = 4
Mar 16 11:21:20 localhost kernel: retrospectcdfs_root; mp 0x171107c
Mar 16 11:21:24 localhost kernel: SAM Multimedia: READ or WRITE failed, ASC = 0x00, ASCQ = 0x00
Mar 16 11:21:25 localhost last message repeated 4 times
Mar 16 11:21:25 localhost kernel: disk1: I/O error.