iCal Search Problem

I’ve recently discovered that iCal’s search is not showing me all of the matches. If I go to the right months I can see the events there, but they don’t appear in the search results list. This is a big problem! So far, I’ve noticed:

1. The events do appear in the search results on my iPhone.
2. Deleting the file ~/Library/Calendars/Calendar Cache didn’t help.
3. The events do not appear in Spotlight search results from the Finder.
4. According to a BBEdit search, there do not seem to be .ics files for these events in the folder ~/Library/Calendars/«UUID».calendar/Events/ or in an iCal export.

I suppose the solution is to get iCal to regenerate the .ics files in the Events folder, but I’m not sure how best to do this. Apple has instructions for resetting Sync Services, but I worry that this would cause it to overwrite the Sync Services database with the incomplete .ics files, whereas I want to do the reverse.

Update (2011-10-13): Alas, Mac OS X 10.7.2 did not fix the search problem.