With the updated kernel 1526 smp I find that my system is seemingly running slower, programs take longer to start up and it appears to be running on only 1 out of 2 processors. Also my SATA drives were found as "sd" before and now are "hd" devices, minor, but annoying to switch. Reading the archives I notice that others had the SATA switch to "hd". I was following bug 155759 and running the usb-handoff and had received a message that this kernel may solve the mouse problems. It didn't. For now I'm back to the 1456 kernel.