After importing data from vBulletin 4 the members who used umlauts (äöü) and/or special characters (ß) in their passwords can't log in anymore. The strange thing: The 'password" table collation is "latin1_swedish_ci" in vBulletin 4, although the language of the forum is German not Swedish. (I think the problem happens while converting from "latin1_swedish_ci" to "utf8_general_ci".) I used the vB4 importer 1.47. Any ideas?