Programs Will Not End On Restart With XP Running On SL500

[sl500new]

I have an intermittent problem with a Thinkpad SL500 that's about two weeks old running XP sp3. About every other or every third time I try to do a restart, three programs will not end automatically. The programs are Message Center, kmw_run.exe and explorer.exe. kmw_run.exe is a program related to Kensington Mouse Works that I installed.

When this problem occurs, it is always these three programs in the order listed. I can end the programs manually and the computer will shut down and restart and boot up normally. This problem never occurs when I do a shut down, just on a restart. I've installed UHClean, which helped some, as before UHC, this was happening on every restart. I've looked at the event log and cannot identify what might be causing this.

If I need to attached the event log, please advise how to do this with the details. When I export the events log, it only lists the events not the details.

[Harryc]

Uninstall Kensington Mouse works and Message center, now reboot. Does it work?"