We've been using VMware on our SLED11 (a few SLES11 also) boxes for
quite some time, clients love it. They happily work in their numerous
desktops and occasionally flip over to Windows XP to use a specialized
application. However, SP2 seems to have broken this. Perhaps moving
over to KVM or XEN might stop the headaches of holding my breath every
time I apply patches? VMware was much more mature years ago compared to
the rest. I'll assume by now things have changed. I'm willing to take
a different path if it will lower my client's costs. Would you advise this?

KVM or XEN?

Will KVM run on SLED or only SLES?

We know XEN happily runs on both.

Any advice here will be greatly appreciated.

Thanks in advance.

Bob