After recently running an update, my kde apps began to break. Appearantly there is a problem with scim-qtimm, which is some sort of plugin to KDE for language purposes.
I am running an AMD 64 laptop with FC5. The package that was causing the trouble was the scim-qtimm.x86_64 package.
If you see output like this...:
Using host libthread_db library "/lib64/libthread_db.so.1".
[Thread debugging using libthread_db enabled]
[New Thread 46912527957536 (LWP 2516)]
#5 0x00002aaab0994d52 in scim::QScimInputContext::metaObject ()
#6 0x0000000000000000 in ?? ()
You may wish to try to downgrade or remove the scim-qtimm package. I removed it as it seemed only relevant to the use of Chinese.
Things are happy again.