救命，图形界面登录后出现错误

Mandriva 2006，上次关机正常。
现登录图形界面后，不断一个一个的出现“KDE守护进程－KDE崩溃处理程序”，提示KDE守护进程（kded)已崩溃，导致信号8（SIGFPE）。
利用回溯跟踪，显示下列信息：
(no debugging symbols found)
Using host libthread_db library "/lib/tls/libthread_db.so.1".
(no debugging symbols found)
`shared object read from target memory' has disappeared; keeping its symbols.
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
[Thread debugging using libthread_db enabled]
[New Thread -1230145312 (LWP 3793)]
[New Thread -1250583632 (LWP 3806)]
[New Thread -1242190928 (LWP 3805)]
[New Thread -1233679440 (LWP 3804)]
(no debugging symbols found)
[KCrash handler]
#4 0xb6917831 in KatIndexerManager::customEvent ()
from /usr/lib/kde3/kded_katd.so
#5 0xb74f708c in QObject::event () from /usr/lib/qt3/lib/libqt-mt.so.3
#6 0x080e6028 in ?? ()
#7 0x08347660 in ?? ()
#8 0xbf9f8094 in ?? ()
#9 0xb793d434 in ?? () from /usr/lib/qt3/lib/libqt-mt.so.3
#10 0xb793d434 in ?? () from /usr/lib/qt3/lib/libqt-mt.so.3
#11 0x080e76b0 in ?? ()
#12 0xbf9f8094 in ?? ()
#13 0xb7495e80 in QApplication::internalNotify ()
from /usr/lib/qt3/lib/libqt-mt.so.3
#14 0x080e6028 in ?? ()
#15 0x08347660 in ?? ()
#16 0x08347660 in ?? ()
#17 0xb793d434 in ?? () from /usr/lib/qt3/lib/libqt-mt.so.3
#18 0x0805af4c in ?? ()
#19 0x080e7450 in ?? ()
#20 0x00000000 in ?? ()

窗口不断的蹦出来，咋回事？

mei jian guo

不用该用户登录，新建用户，没问题了，但不知原因