I don't know what version of Office it was but here's a more recent article about Office 2003. If it wasn't Office 2003 then don't proceed:
http://support.microsoft.com/kb/823586
If you're comfortable doing the suggested registry changes, I recommend that you create a back up of the registry first so you can restore it if something goes wrong.
Please go to
Start -
Run and copy and paste the following and then click OK:
regedit /e c:\registrybackup.reg
It won't appear to be doing anything and that's normal. Your mouse pointer may turn to an hour glass for a minute.
When it no longer has the hour glass, check in your C drive to be sure you have a file called
registrybackup.reg before going ahead with the changes in the artile.
Let us know how it goes please.