There is a 2.6.37 kernel to test (2.6.37-1.xendom0.fc15) at http://koji.fedoraproject.org/koji/taskinfo?taskID=2703408 I have had mixed success with this as the kernel package doesn't boot, but the kernel-debug package does boot to runlevel 3 (albeit with the couple of minutes delay which I have been seeing in the 2.6.37-rc kernels). Michael Young