Yes - I sent you a small sample app last week demonstrating it. After I sent it I found out you were in Oz for 10 days so you probably missed it.
If I use a GUID key as the unique key, the Page option does not work, only File works. And neither does resorting, locators. If I change the unique key to a Sysid/Site key Page works, but not form updating. Because the unique key mustn't be made up of more than one field.
So I modified example app #1 with one of my files to show you what I mean. This way I can be sure there are no XHTML issues involved either.
Would you like me to resend the link to the sample app?
regards
Mike