Hi, I am glad to report that with kernel-rt-3.2.16-1.rt27.2.fc16.ccrma.i686 I finally have a version again that does not put my computer in an unusable state. The last working rt kernel until now for me was kernel-rt-3.2.9-1.rt17.1.fc16.ccrma.i686 All the newer versions I could not use. Something important seems to be fixed. Thanks! -- MT