by Kale » Sat May 29, 2010 7:47 pm
The only known requirement for Solwan to be there is giving him the money for the quest. You might verify that the quest is indeed in your quest log book as 'completed'. If, for example, you gave him the money and then had to load an old save file for some reason that was made before you gave him the money. I know that's happened to me sometimes when I think I save more often than I really am.
For the rest, I don't know what to say. I can't imagine the game/save file getting corrupted could possibly have the specific effects you listed. At best, the game would either crash instantly or fail to load your save file at all; not have half-and-half problems like a quest still being available, but not completable. Granted, it would never hurt to reinstall the game and make sure you have the most up-to-date version available. Otherwise, maybe try back from a save file before you talked to Louis and look over your quest log book to make sure the quest was completed.