I suspect this is a generic windows issue, rather than one specific to
Microsoft Visual Basic 6.5 on Microsoft Office Excel 2003 (11.8320.8221)
SP3 on Microsoft Windows Vista Business 6.0.6002 Service Pack 2.

I would expect
File Edit View Insert Format Debug Run Tools Add-Ins Window Help
to run horizontally at the top of the VBA window, just below the title.

It runs vertically on the left hand side of the window.

I've finally got sufficiently irritated with this to ask if anyone will
say how to control it?

Thanks!
--
Walter Briscoe