So, I have done a lot of searching the web relating to this issue and none of the solutions seems to solve my problem. When I try to manually add a new appointment in Outlook 2003, it gives me the following error: "The form required to view this message cannot be displayed. Contact your administrator." I can receive new calendar items via email and add them to my calendar but it gives me the error when I try to manually add a new one.
I have tried the following things:
1) I have cleared my forms cache in Outlook under Options...
2) I have deleted all instances of FRMCACHE.DAT on my machine.
3) I have added the registry key ForceFormReload under HKEY_LOCAL_MACHINE\Software\Microsoft\Office\11.0\Outlook
FYI - I am running WinXP SP2 and Outlook 2003 with all of the latest MS Patches. I have 2 email accounts, one POP3 and the other Exchange (not that it matters...).
Any help would be much appreciated.