When I double-click an existing picture within MS Word 5.0 or 5.1, I cannot access the MS Word graphics editor.
If you have installed the EGO for Word plug in module, the MS Word graphics editor is disabled for editing pictures, even if the picture was originally created using the MS Word graphics editor.
Both Microsoft and Prescience Corporation (the originator of EGO for Word) are aware of this problem. For the short term, you will need to decide which is of greater benefit to your personal needs. You can use the MS Word graphics editor or EGO for Word, but not both.