Kernel kernel-2.6.25.4-10.fc8 - problem

[Mike C]

I just updated to kernel-2.6.25.4-10.fc8 in a Dell 5150.

I use Crossover to run Office XP - and up till now Excel XP has been fine.
As soon as I booted to the new kernel and opened two excel files, and then
did a copy followed by "paste special" - on hitting "enter" the entire machine
crashed. Not just Office, or Crossover or X - but the new kernel crashed.
I could not use ctrl-alt-backspace, nor could I use alt-sysrq-b - 

This is dreadful.

I rebooted and tried the same again - the kernel crashed at the same point.

On reverting to the previous kernel-2.6.24.7-92.fc8 - all is well again.

Anyone else seeing nasty things happening with the new kernel in F8?