Vista Tutorial - Microsoft Wireless Desktop 6000 V2 under Vista - some keys not working - mouse scroll wheel 1 direction only

Hi.

Can anyone help with the following.

Have downloaded the latest versions of intelltype and intellipoint from MS.
Installed under Vista Home Premium 32bit.

Two keys not working, both on the bottom left labelled gadgets. The magnify
button does nothing when I press it, neither does the gadget button.
What should these keys do exactly and any ideas why they don't work ?

Secondly, in some programs but not all, the scroll wheel on the mouse only
scrolls in one direction ( usually up ) not matter which direction the
scroll wheel is moved. Programs where this occurs include Google Earth and
Quicken 2004, works ok in most programs though. This is not a problem when
run under XP Pro so I don't think it's an hardware issue.

Any help appreciated.

Rifleman