Date format reset

Hi,
I have a date field in a dataset that is bringing back UK formatted dates
(dd/MM/yyyy) from a UK configured SQL Server on a UK configured server. In RS
the preview displays these dates, again as UK - everything is fine so far...
My problem is when I run the report the dates are output in US format
(MM/dd/yyyy). Even if I set the textbox's format to be the correct style
date, the values are always US style.
Any help much appreciated.
AlIf there is no language information set on the text box, the language
of the report is used. If the language of the report is not set, the
language of the Web browser is used. If the language of the Web browser
is not set, the language of the operating system of the report server
is used. For example, if you set a specific language on a text box that
displays date information, then that text box is always displayed with
the date format for that language even if the report, Web browser or
server is set to a different language.