Hey there again MR programmers. I've got a real perplexing one this time. I turned off the Objective-C v2.0 garbage collection for a bit to test my memory management code for leaks and such...and got a bit more than I bargained for. I'm running into a malloc double free error, and while I know what causes this from my searching I can't possibly imagine why it would be happening in my case. The error seems to be triggered upon a call to dyld_stub_NSPopAutoreleasePool, which in turn looks to be part of a loadNib call. I'm not doing anything weird with Nibs, just loading a main one through Info.plist. Any ideas? Let me know if you need more background, or I can post the project if needed.