so you dislike the compatibility checker?

per MSFT at http://support.microsoft.com/kb/929355 - To create the ShowCompatDialog registry DWORD value, follow these steps:

1. Exit PowerPoint 2007.
2. Click Start, click Run, type regedit, and then click OK.
3. Locate and then click the following registry subkey:
HKEY_CURRENT_USER\Software\Microsoft\Office\12.0\PowerPoint\Options
4. On the Edit menu, point to New, and then click DWORD Value.
5. Type ShowCompatDialog, and then press ENTER.
6. Right-click AutoArrangeViews, and then click Modify.
7. In the Value data box, type 0, and then click OK.
8.

On the File menu, click Exit to exit Registry Editor.

 

I'm trying it out on excel .. same stuff under excel in regedit.  haven't had any issues / or compatibility dialogs :)

 

so your dell optiplex 745 or other comptuer doesn't scroll in office 2007? uninstall the mouse suite - this fix works right away.

requires a single reboot.