Frequent Quicksilver crashes?

Lately, Quicksilver has been quietly dying very often and I’m constantly restarting it. I suppose I should try reinstalling and/or deleting my preferences, but before I do that, I was wondering if anyone else was seeing this.

Interestingly, I’ve also noticed that the “check for updates” functionality always fails to connect to the server. I’ve wondered if this and the crash are related (e.g.: Quicksilver dying when it attempts to do an automatic check), but that’s just pure speculation.

Here’s a snippet from the last crash log that got dumpd in ~/Library/Logs/CrashReporter

Process:         Quicksilver [1566]
Path:            /Applications/
Identifier:      com.blacktree.Quicksilver
Version:         β53 (3814)
Code Type:       X86 (Native)
Parent Process:  launchd [87]

Date/Time:       2008-04-01 11:27:29.302 -0700
OS Version:      Mac OS X 10.5.2 (9C7010)
Report Version:  6

Exception Type:  EXC_BAD_ACCESS (SIGBUS)
Exception Codes: KERN_PROTECTION_FAILURE at 0x0000000000000000
Crashed Thread:  4