Is this when you view his free/busy information on the Scheduling tab? If
it's affecting this one person's Calendar for anyone who tries to view his
availability, get him to run Outlook with the /cleanfreebusy switch.
Start > Run > "Outlook /cleanfreebusy" (without the quotes) should do it,
but if not, search Outlook Help for "command line switches" for full
instructions.

Signature
TechieBird
http://bwain-dump.blogspot.com
> When using scheduling to view another contacts availability, his
> (public) meetings do not show up even after he has accepted them. Can
> someone help?