RegularExpressionValidator not behaving as it should

Hi,
I've got the following code as a part of a registration form:
<asp:Label ID="lbl_memberOf" text="Member of" AssociatedControlID="memberOf" runat="server" /> <asp:TextBox ID="memberOf" CssClass="txt txtlng" TabIndex="8" ToolTip="add your memberships and organizations" runat="server" /> <asp:RegularExpressionValidator ID="rev_memberOf" CssClass="placeValidHere" ControlToValidate="memberOf" Text="*" ErrorMessage="Please insert your memberships and organizations with a minimum of 3 and a maximum of 200 characters" ValidationExpression=".{3, 200}" runat="server" ValidationGroup="valCreate" /> Whenever I test submitting the form with any value over 3 characters and with less the 200 on the 'memberOf' textbox, it will always triggers the m ...