save to documents directory vs temporary directory

[natronp]

i had this which seemed to work as far as archiving/unarchiving into the temporary directory:

NSString *archivePath = [NSTemporaryDirectory() stringByAppendingPathComponent:@"User.archive"];
	BOOL *result = [NSKeyedArchiver archiveRootObject:[self newUser]
									toFile:archivePath];

but when i switched it to this:

NSString *archivePath = [NSDocumentDirectory
stringByAppendingPathComponent:@"User.archive"];
	BOOL *result = [NSKeyedArchiver archiveRootObject:[self newUser]
									toFile:archivePath];

i get Bad Access errors and app quits...

what do i need to do differently if i want to save into documents directory vs. temporary directory? thanks!

[flamingliquid]

BOOL *result could have something to do with it. It shouldn't be a pointer.