From ModDB:

The Erathian Liberation Party, a group of fans of the Might and Magic series, has released a new patch for Might & Magic IX, bringing New World Computing's RPG to v1.3. Although not official, this release fixes over 80 bugs and is compatible with existing saves and make sure to apply the official 1.2 patch first. TELP's 1.3 can be run with existing savegames, not all changes will be expressed if the involved game area has already been entered before applying the patch.

Read the changelog below ModDB's notes. This might fix Might and Magic 9 for most folks.

http://www.moddb.com/games/might-and-magic-9/downloads/might-and-magic-9-unofficial-patch-v13

Accordin to BungBo's post in this thread, the game is already patched with the unofficial 1.3a patch.

www.gog.com/en/forum/might_and_magic_series/mm9

Well hell :P