I guess you're right. I use PHP includes on another site and it works fine.
I'm just setting this site up and plan to incorporate includes into it.
This issue with the DW template not working though is just weird, it's always worked fine before. I've sort of found a work around.
If after creating the new file from template (which doesn't have the appropriate style sheet attached) I go to the DW Styles panel and click the little icon to attach a Style Sheet, chose the appropriate one and hey presto everything is fine.
Thing is I shouldn't have to do this, the line of code to attach the style sheet is actually in the new file before I do the above, DW just doesn't seem to recognise it any more unless I redo it as explained.
Thanks for your input,