He can also try this script here:
http://www.paulsxp.com/forum/viewtopic.php?f=16&t=149
This script will Restore the Side Bar.
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"Corne" <> wrote in message
news:8CD206C7-36C0-4CDE-84D1-...
> Hi I dont know if you tried this and dont know exactly the problem but go
> to windows defender/tools/software explorer and see if its permitted.
> Also you can add a shortcut to the startup folder in start/all
> programs/startup
> See if this would work and from there on you can pinpoint the problem
>
> Regards
>
> Considering you have Vista.
>
> "Bill W" <> wrote in message
> news:Od1h$...
>> For no reason that I can see, the sidebar goes away. I can restart it
>> and it'll stay for a few days and then disappear again. I'd appreciate
>> any help you can give me so it will stop going away. Thanks for your
>> help.
>