Did you make a copy of your 1.91 install and do the patch? If so, some of the settings like music on/off etc. will overwrite each other in the registry...
I patched my v1.84 install to v1.95. I currently have separate installs of v1.49, v1.91, and v1.95; I keep at least one older install in case I need to troubleshoot old games as a PBW admin.
Of course, now that I've publically complained about it, the autosave problem has gone away.
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Cap'n Q
"Good morning, Pooh Bear," said Eeyore gloomily. "If it is a good morning," he said. "Which I doubt," said he.