Does iLife 09 Mess Up Quicksilver?

I’ve installed iLife 09 twice now (with the multi-user Family Pack of course!) and on both occasions, Quicksilver got messed up. Quicksilver is installed and still working, but it looks like its catalog of apps gets jacked.

Invoking Quicksilver to startup apps doesn’t bring up the correct app. For example, trying to run “Disk Utility” to correct disk permissions, I type in control-space to envoke QS then enter in d-i-s-k. Disk Utility is usually the top choice but not anymore. Not sure what’s up. Rebuilding the QS catalog fixes this so it’s not a permanent mess up, just an inconvenient one.