Outlook 2000

I’m running Outlook 2000 with Exchange 5.5 on an XP pro machine. When I open attachments within outlook or try to forward two or more messages, I get an error message that reads, “The object could not be found”.

I have applied service pack 3 for office 2000, used the “detect and repair” option within outlook and tried to browse technet, but I have met with no luck. Please help…