asp menu on mouse out

[sahar.84niknam]

this is a database driven menu,but on mouse out when I pass the parent menu the submenu stays white,I would be glad if anybody could help me this out?
:?:

<asp:Menu ID="Menu1" DataSourceID="xmlDataSource1" runat="server" DynamicHorizontalOffset="2"
                                                        Font-Names="Tahoma" ForeColor="#FFFFCC" StaticSubMenuIndent="" StaticDisplayLevels="1"
                                                        StaticEnableDefaultPopOutImage="False" DynamicEnableDefaultPopOutImage="False"
                                                        Font-Size="Small">
                                                        <DataBindings>
                                                            <asp:MenuItemBinding DataMember="MenuItem" NavigateUrlField="NavigateUrl" TextField="Text"
                                                                Value="Value" ToolTipField="ToolTip" />
                                                        </DataBindings>
                                                        <StaticMenuStyle BackColor="#6699FF" HorizontalPadding="2px" VerticalPadding="2px" />
                                                        <StaticSelectedStyle ForeColor="#45BBE2" />
                                                        <StaticMenuItemStyle HorizontalPadding="5px" VerticalPadding="2px" Font-Names="Tahoma"
                                                            Font-Size="Small" />
                                                            <DynamicMenuStyle BackColor="#6699FF" CssClass="adjustedZIndex" />
                                                        <DynamicSelectedStyle  Font-Names="Tahoma" ForeColor="Black" />
                                                        <DynamicMenuItemStyle HorizontalPadding="5px" VerticalPadding="2px" Font-Names="Tahoma"
                                                            Font-Size="Small" ForeColor="#FFFF99" />
                                                        <DynamicHoverStyle Font-Bold="False" />
                                                        <StaticHoverStyle Font-Bold="False" ForeColor="Black" Font-Names="Tahoma" Font-Size="Small"
                                                             />
                                                    </asp:Menu>