2.0: asp:CompareValidator with Type

[R.A.M.]

Hello,
(Sorry for my English...)
Could you help me please? I have a problem with CompareValidator
control which makes the load of my page infinitive. Here's the code:

Date of birth: <asp:TextBox ID="BirthDate" runat="server" />
<asp:CompareValidator ID="BirthDateValidation" runat="server"
ControlToValidate="BirthDate" Type="Date"
Text="Enter date of birth!" /><br />

Without CompareValidator pages loads correctly. After adding this
control load process does not end.
Could you explain me the problem please?

Thank you very much!
/RAM/