Date Format

Im running an ASP.net application on a windows server with SQL server for
the database. The date format I am using is MM/DD/YYYY but that seems to
work on my local server and not on my production server. On my production
server, I get errors if the date isnt in DD/MM/YYYY. Does anyone know why or
where there is a setting to change this? I am not sure if this is a SQL or
server issue
Sounds a little odd. For some reason your default date format sound like UK English.
Have you tried doing direct selects from the SQL sever using the MM/DD/YYYY format.
if that fails then look at sp_configure for the default full-text language. Make sure that it is 1033 for US English and not 2057 for UK English. That may not be the fix but I am still looking.
Jeff