Doesn't happen all the time even but occasionally. Any thoughts on fixing this problem?
<asp:UpdatePanel ID="udpEditModal" runat="server"><ContentTemplate><asp:UpdateProgress ID="UpdateProgress5" AssociatedUpdatePanelID="udpEditModal" runat="server"><ProgressTemplate><div style="text-align: center; color: Red; font-size: 12px; font-weight: bold; position: relative;"><img src="images/ewestcor_loader.gif" alt="Loading" /></div></ProgressTemplate></asp:UpdateProgress><asp:Button ID="btnEditHack" runat="server" Style="display: none;" /><asp:Panel ID="pnlEditModal" CssClass="pnlBackGround" runat="server" Width="450px"><table width="100%"><tr><td colspan="2"><asp:Label ID="Label1" runat="server" Text="Edit Scheduled Audit" Font-Bold="True" Font-Size="Large"></asp:Label></td></tr><tr><td colspan="2"><asp:Label ID="Label10" runat="server" Text="Auditor:" Width="125px" Font-Size="Medium"></asp:Label><asp:TextBox ID="txtEditAuditor" CssClass="txtbox" runat="server"></asp:TextBox></td></tr><tr><td colspan="2"><asp:Label ID="Label11" runat="server" Text="Auditor 2:" Width="125px" Font-Size="Medium"></asp:Label><asp:DropDownList ID="ddEditAuditors" runat="server"></asp:DropDownList></td></tr><tr><td colspan="2"><asp:Label ID="Label12" runat="server" Text="Scope:" Width="125px" Font-Size="Medium"></asp:Label><asp:TextBox ID="txtEditScope" CssClass="txtbox" runat="server"></asp:TextBox></td></tr><tr><td colspan="2"><asp:Label ID="Label13" runat="server" Text="Schedule Date:" Width="125px" Font-Size="Medium"></asp:Label><asp:TextBox ID="txtEditCalendar" CssClass="txtbox" runat="server"></asp:TextBox><asp:CalendarExtender ID="CalendarExtender1" TargetControlID="txtEditCalendar" runat="server" Enabled="True" /></td></tr><tr><td colspan="2"><asp:Label ID="Label14" runat="server" Text="Schedule Time:" Width="125px" Font-Size="Medium"></asp:Label><span id="spanEditTime" style="font-size: medium" runat="server" >12:00 PM</span> </td></tr><tr><td colspan="2" width="100%" align="center"><asp:HiddenField ID="hfEditTime" runat="server" /><asp:TextBox ID="txtEditTimeSlider" runat="server"></asp:TextBox><asp:SliderExtender ID="SliderExtender2" runat="server" TargetControlID="txtEditTimeSlider" BehaviorID="slider2" Minimum="0" Maximum="95" Steps="95" Enabled="True" /></td></tr><tr><td colspan="2"> </td></tr><tr><td colspan="2"><asp:CheckBox ID="ckbEditReminder" runat="server" Font-Size="Medium" Text="Send Audit E-Mail Reminder?" /></td></tr><tr><td colspan="2"> </td></tr><tr><td colspan="2" align="left"><asp:Button ID="btnOK2" runat="server" Text="OK" UseSubmitBehavior="False" /><asp:Button ID="btnHackOK2" runat="server" Text="OK" Style="display: none" /><asp:Button ID="btnCancel2" runat="server" Text="Cancel" UseSubmitBehavior="False" /></td></tr></table></asp:Panel><asp:ModalPopupExtender ID="mpeEditSchedule" runat="server" PopupControlID="pnlEditModal" TargetControlID="btnEditHack" BackgroundCssClass="modalBackground" DropShadow="True" OkControlID="btnHackOK2" CancelControlID="btnCancel2" Enabled="true"></asp:ModalPopupExtender></ContentTemplate><Triggers><asp:AsyncPostBackTrigger ControlID="gvEditAudits" EventName="RowCommand" /></Triggers></asp:UpdatePanel>
