Q:

quick launch items missing

For some reason the Quick Launch Items has gone missing from my custom masterpage and I am not sure hwo to get them back...
The code for my Quick Launch:
<Sharepoint:SPNavigationManager
                id="QuickLaunchNavigationManager"
                runat="server"
                QuickLaunchControlId="QuickLaunchMenu"
                ContainedControl="QuickLaunch"
                EnableViewState="false"
                CssClass="ms-quicklaunch-navmgr">
                <div>
                    <SharePoint:DelegateControl runat="server" ControlId="QuickLaunchDataSource">
                        <Template_Controls>
        <asp:SiteMapDataSource SiteMapProvider="SPNavigationProvider" ShowStartingNode="False" id="QuickLaunchSiteMap" StartingNodeUrl="sid:1025" runat="server" />
        </Template_Controls>
                    </SharePoint:DelegateControl>
                    <SharePoint:UIVersionedContent UIVersion="4" runat="server">
                        <ContentTemplate>
                            <SharePoint:AspMenu id="QuickLaunchMenu" runat="server" DataSourceId="QuickLaunchSiteMap" Orientation="Vertical" StaticDisplayLevels="2" ItemWrap="true" MaximumDynamicDisplayLevels="2" StaticSubMenuIndent="1" SkipLinkText="" CssClass="s4-die">
                                <LevelMenuItemStyles>
                                    <asp:menuitemstyle CssClass="ms-navheader" />
                                    <asp:menuitemstyle CssClass="ms-navitem" />
                                </LevelMenuItemStyles>
                                <LevelSubMenuStyles>
                                    <asp:submenustyle CssClass="ms-navSubMenu1" />
                                    <asp:submenustyle CssClass="ms-navSubMenu2" />
                                </LevelSubMenuStyles>
                                <LevelSelectedStyles>
                                    <asp:menuitemstyle CssClass="ms-selectednavheader" />
                                    <asp:menuitemstyle CssClass="ms-selectednav" />
                                </LevelSelectedStyles>
                            </SharePoint:AspMenu>
                        </ContentTemplate>
                    </SharePoint:UIVersionedContent>
                    <SharePoint:UIVersionedContent UIVersion="4" runat="server">
                        <ContentTemplate>
                            <SharePoint:AspMenu id="V4QuickLaunchMenu" runat="server" EnableViewState="false" UseSimpleRendering="true" UseSeparateCss="false" Orientation="Vertical" StaticDisplayLevels="2" MaximumDynamicDisplayLevels="0" SkipLinkText="" CssClass="s4-ql" />
                            <asp:SiteMapDataSource runat="server" ID="SiteMapDataSource1" SiteMapProvider="SPNavigationProvider" />
                        </ContentTemplate>
                    </SharePoint:UIVersionedContent>
                </div>
                </Sharepoint:SPNavigationManager>

There is simply no items on the list.  And I can't get them back. 

A:

Go to Site Settings .  Under Web Designer Galleries click master pages and page layouts.  Look for your master pages version history.  Then reload to the which version you want.