On Holodeck, my Negh'Var is named 'oy' vav (Father of Pain). I set the name some time ago, and seemed to have no problem using the ' at the beginning.
When I wanted to test the bortaS class on Tribble, i decided to name the ship 'oy' vavnI' (Grandfather of Pain). However, i got a message "invalid charcters in field", and it would not allow me to use the name.
Please, by the hand of Kahless, allow for ship names to use correct tlhIngan Hol orthography. It is spelled 'oy', not oy' or even Oy. I realize Cryptic has major problems with spelling a single Klingon name right, but please don't keep players from doing so.