You can work around this problem. Open Carbonite options (right click the C minimap icon and select options). Then select "Quest Watch" tab. Check the box for "Use fixed size list" at the bottom. This puts all of the quest text into a window with a vertical scroll bar. This window can be resized by dragging the its borders about with the mouse (same as the carbonite map).
You may want to right click the title of the quest watch/tracker window and set transparency to 0 to make it look more like the non fixed size list.
Hope this helps
