Kernel version and how to activate?

uname says I have kernel 2.4.19-4GB on my Athlon machine. That's from September. YaST says that the installed kernel version is: k_athlon-2.4.19-66 1) Is uname showing me the same kind of thing that YaST is talking about? Or are these two different "kernels"?? 2) What do I do to make the k_athlon kernel active? 2) Should I be concerned about k_athlon-2.4.19-167.i586.rpm that's available in the SuSE section of rpmfind and other sites? I'm having REALLY bad X problems, and a few people have suggested that an updated kernel will help. What's the poop? /kevin