I'm trying to return pages with a string property starting with a provided letter. if I provide the letter 'A' it returns correct the pages with property A that starts with letter 'A' but only if the second letter isn't also the letter 'A'. Will match on 'Andorra' but not on 'Aalborg'. Any suggestions?

string input = "Aa";
var criterias = new PropertyCriteriaCollection();
var queryCriteria = new PropertyCriteria
{
Condition = CompareCondition.StartsWith,
                Name = "LastName",
                Value = input,
                Type = PropertyDataType.String,
                Required = true
        };

criterias.Add(queryCriteria);
var pages = DataFactory.Instance.FindPagesWithCriteria(PageReference.StartPage, criterias, CurrentPage.LanguageBranch);

Stig