Passing a date parameters

[ByzantianX]

I tried to bound a new report to the stored procedure on sql server. Stored procedure requires 2 smalldate parameters and there is no way I can pass the value in "Enter parameter value" dialogue. Everytime I am getting the message "Error detected by database DLL". I am using European date format DD.MM.YYYY
I really don't know what to do. I had to change stored procedure and to pass string values (I converted those two date parameters with convert(smalldatetime,@dateparameter) function but that can be only an ad hoc solution. I'm using Crystal Reports 7. Please, help!