Having this problem ever since I downloaded a new UI. Vuhdo will automatically disappear whenever I'm playing. When I type /vuhdo opt it will reapper after a few seconds whilst I'm in the options menu but once I exit the menu it will automatically disappear. I've tried doing /vd reset but they're still invisible.
Well... What was the UI you downloaded? And do you get the same behavior if Vuhdo is the ONLY addon enabled?
"You'd be surprised how many people violate this simple principle every day of their lives and try to fit square pegs into round holes, ignoring the clear reality that Things Are As They Are." -Benjamin Hoff, The Tao of Pooh