The subject line really says it all, very unfortunately.

I'm using a Dell Inspiron 9300 with a nice GeForce Go 6800, latest
Dell-approved drivers (April 2006), plenty of horsepower; and of course
I'm fully up-to-date in my Windows XP Pro and Office 2003 Pro service
packs,
though now I'm actually using Office 2007 beta 2.

Suddenly I'm having to use Excel every day, and usually with BIG sheets
(often with hundreds of columns, tens of thousands of rows).

In searching to see how to turn on smooth/live/real-time
scrolling instead of the "helpful" stupid tooltip bubble with the row
or column number/letter (that then only shows the rows you've scrolled
to after releasing the scroll bar), I discovered that live scrolling
was standard In Excel versions 2002 and higher. Indeed, there's no way
to turn it off or on--it's just always on.

Except for me, somehow. It doesn't work at all. More precisely, it's
like Excel has turned off that feature (the scrolling still works, but
horribly--as though one were using Excel 97, with the actual scrolling
occuring only after one lets go of the bar, so one simply CANNOT scan a
spreadsheet without going single page by single page).

Can any expert out there suggest any settings, registry patches, or
other fixes?

I asked this question a few months ago (before I got Office 2007) and
no one replied--I hope someone has some ideas this time. This is
incredibly annoying and really hurts productivity with Excel.

Thanks.

John