Blizzard made some changes to the score frame and it causes those issues. I made a quickfix for myself, but didn't have time to go through it all that much last night. Hopefully an updated version will be up, or I will take another look after work.
Working version of honorFu, harcoded the width of the scoreframe and fixed coloring (and not tested for the arena as I haven't set my foot there yet, there has been changes in that area so it might bork in there).
Fixed that the other day, but since there hasn't been an official fix yet, I'll upload this as an attachment for those in need.