Outlook 2010 'Check spelling as you type' grayed out

Hi,

As above really. I've searched extensively for a solution, and many point out that this feature cannot be used in Outlook 2003/2007 when Outlook is installed separately from Word...but I can't find any references to Outlook 2010 - is it the same?

I'm using Office 2010 trial, and a bought Outlook 2010. There must be a way surely? Outook comes with its own spell checker right? So I don't quite see the relevance of MS Word to all this....

Any suggestions welcome...

Thanks,

Tom