Unfortunately, the other files causing a problem were the two story.* files, which keep track of quest information. There is no way to simple replace these files, since an older save will be missing information and files from a different character will have at least some problems from things done in a different order or quests in different stages of completion.

You'll have to restart from your last working save. Replacing the story and quickinfo files in the latest 'nericon' save will allow it to load, but upon exiting Iona's dungeon, there is no cutscene with Arhu (the cat) to give you the next main plot quest, because the story files from the earlier save don't have you even entering the castle yet.


You could use DAD's item editor or the Divine Divinity Item Editor to put a large damage value on a temporary weapon, so you can get through combat much faster until you catch up to where your latest save was. The second editor isn't as full featured, but should be more compatible if you have any dll errors with the first (some people reported errors in Win7/8).