this appears to have been an (unconfirmed)
issue in 2007 and, while i can't find any mention of it in
Bug Reports, it may have been one at some point.
if you haven't
upgraded your DBPro (which is my hunch), i recommend that you do so. beyond that, if you are up-to-date, there's a chance your help files have been corrupted which i believe should get fixed with the "repair" aspect of the DBPro installation application, though i've always re-installed DBPro and updated whenever something appears to have been corrupted (i once noticed a command missing from the help files and, upon further investigation, realized i was missing more than one. i have no idea how it happened but the clean re-install fixed it
).
good luck!
Virtual Nomad @ California, USA
AMD Phenomâ„¢ X4 9750 Quad-Core @ 2.4 GHz . 8 GB PC2-6400 RAM
ATI Radeon HD 3650 @ 512 MB . Vista Home Premium 64 Bit