Hi There,

 Internally at work if i remote desktop i get multi Dekstop to work, but from home i dont any ideas why that would be?

Cheers 

 Remote desktop cannot handle multi desktops based on the protocol. I have heard this is changing in server 2008 R2 but untill Windows 8 its only 1 screen.

You can trick your PC in to doing it by using spanned desktop and maxing the RDP window which should give you larger RDP area. 

This is strange as internally on the Box Network remote multiple desktop works Win 7 to Win 7?

Strange will have a closer look shortly

 Cheers