Trouble deleting emails

[Bostonbull]

Wirelessly posted (Mozilla/4.0 (compatible; MSIE 6.0; Windows CE; IEMobile 8.12; MSIEMobile6.0) Sprint T7380)

I am unable to use the new feature we gained in 6.5, the ability to delete an email message without opening it. in the Sense/HTC viewer you can now delete messages as you flick them up or down on the preview screen. it has only worked once or twice for me. ill delete them, they will disapear, then i will go to the today screen, and go back to messages, boom there they are again.

any fix? are my settings wrong?