I didn't consider NOWAIT because the whole purpose of MODIFY FILE, in this case, is to stay in and search through the large report.

However, using your idea, I think I got the best of both worlds:

=============================
Define Window Viewer Name oViewer From 5,1 To 8,60 etc...
...
oViewer.Width = _Screen.Width - 60
...
Modify File (tcFile) Window Viewer NoWait
oViewer.Width = oViewer.Width + 1
Modify File (tcFile) Window Viewer NoModify NoMenu
=============================

The little width change (between the two MODIFY FILEs) seems to do the trick.

I like this much more than a waiting loop.

Thanks a lot for the help.

Henry