I think you can check that you are using the new kernel this way:
$ cat /proc/version
Linux version 2.6.15-26-686 (buildd@terranova) (gcc version 4.0.3
(Ubuntu 4.0.3-1ubuntu5)) #1 SMP PREEMPT Thu Aug 3 03:13:28 UTC 2006
You may need to edit /boot/grub/menu.lst (CAREFULLY) or use the grub
boot menu to switch to the new kernel.
I think you can check that you are using the new kernel this way:
$ cat /proc/version
Linux version 2.6.15-26-686 (buildd@terranova) (gcc version 4.0.3
(Ubuntu 4.0.3-1ubuntu5)) #1 SMP PREEMPT Thu Aug 3 03:13:28 UTC 2006
You may need to edit /boot/grub/menu.lst (CAREFULLY) or use the grub
boot menu to switch to the new kernel.