I mean seriously WTF.. I have NEVER been able to delete them. Am I alone here? It's only been 5 years already.
Go check. I doubt any of you can do it either.
Cant , never been able to either Slinger , always wondered why !!! The old ones dont delete , the newer ones do.
Why is this an issue? 
as soon as i check them they auto delete. hmmm...
Mex... not your sent ones.
HKP Same here. annoying.