After an upgrade problem (PMR open) a user could only run Notes 9 in Basic mode. She complained that type-ahead in mail addressing wasn't working as before. I restarted my own mail client in Basic, checked that Location settings matched, and sure enough it's true. Short names don't expand. Partial names resolve differently.
Has it always been that way or is this new with 9? It's tough to address email in Basic mode now.