Outlook 2010: can't smooth scroll in reading pane

Hi,

I'm using an Acer Windows 7 machine with MS Outlook 2010.

When I left-click and hold on the scroll bar of the reading pane
when viewing a long email, and move the mouse/scroll bar
up/down, the email doesn't scroll up/down with me as I move
the scroll bar. When I release the mouse, then the email moves
to the new position of the scroll bar.

How can I get Outlook 2010 to smoothly scroll, like it does every-
where else?

Many thanks,
John

In Mouse settings be sure ClickLock is turned Off/unchecked.

Hi,

Thank you for suggesting something.

Scroll lock ... is off ... and has been off all along.

Any other suggestions?

Does anyone have any suggestions?

@ Ranger4 :

Thank you for your suggestion.

However, I can't find "Hardware Graphics Acceleration"
anywhere in Outlook 2010 > File > Options > Advanced !

See these screenshots:





Am I in the right place?

What did I miss?

Does anyone have any suggestions?

HALP!!!