Once the hotfix is installed, drawings that are subsequently saved in AutoCAD 2000 and AutoCAD Release 14 formats will work as expected. However, drawings that were previously saved in these formats from AutoCAD 2007 will continue to have the problem unless they are resaved with the hotfix applied. The 2000 from 2007 Find Utility below can be used to help identify those drawings. If you have a large number of drawings that need to be resaved,
DWG TrueConvert is a free utility that will make the job easier. Make sure you apply the hotfix to DWG TrueConvert before resaving the drawings.
2000 from 2007 Find Utility (exe - 222 Kb)
Readme (html - 11 Kb)