bug in delete messages in dolphin 7.1.1

1. in mail page when i want to delete messages (inbox and outbox),

i check the message that i want to delete and press delete

then it says: "please, select a least one message"

even when i check two or messages 

2. when i check letter checkbox  it hiding all messages and don't shows it when i check again

http://www.boonex.com/forums/topic/Mailbox-message-selection-error-7-1-1.htm

thank you!

no problem...    the fix didn't work for me tho.