Under Tools> Options> Document Properties> Dimensions, if both the Check-Boxes for "Dual dimensions display" and "Show units for dual display" are ticked, it will display the word Deg instead of the degree symbol you're after.
Hope this helps!
Trevor Clarke. (R & D) Scientific Instruments.Somerset. UK
SW2009x64 SP4.0 Intel Core i7 2.94Ghz, 12Gb Ram, NVIDIA Quadro FX3700 Driver: 6.14.11.8246
SW2009x64 SP4.0 Intel Core 2 Duo 3.17Ghz, 8Gb Ram NVIDIA Quadro FX3700 Driver: 6.14.11.8246