Bill,
Is it possible your color settings in VFP8 have corrupted so that you are like editting white text on a white background? Check the registry key HKEY_CURRENT_USER\Software\Microsoft\VisualFoxPro\8.0\Options and look at the Editor* entries.
You might also try whacking your 8.0 Foxuser.dbf
Is it possible you are trying to use the same resource file between both environments?
>I just installed VPF8.0 with SP1 and the editor is blank when I try to
>view method code in a form. The same form edits just fine in VFP7.0! I have
>reinstalled VFP8.0 and no improvement. Appeciate any suggestions.