Doh, you're not supposed to find bugs
Is this with your HTC Desire? What version of Android is it running?
If you change it to another color and to Arabic numerals and then use some other apps, does it change back to both red and Predator numerals? I'm wondering if it's something with the other app(s) taking up enough memory that Android drops the cached views for the widget. It
should reconstruct them with the correct color and digit style (just as it does if you change the color, remove the widget from the home screen, then re-add it at a later time), but something else must be affecting it.