Wow! Quick reply! I tried switching to a couple different themes and got the same error each time. I'll post the error in its entirety:
Server Error in '/' Application.
--------------------------------------------------------------------------------
Input string was not in a correct format.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.FormatException: Input string was not in a correct format.
Source Error:
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.
Stack Trace:
[FormatException: Input string was not in a correct format.]
System.Number.StringToNumber(String str, NumberStyles options, NumberBuffer& number, NumberFormatInfo info, Boolean parseDecimal) +7471479
System.Number.ParseInt32(String s, NumberStyles style, NumberFormatInfo info) +119
System.Convert.ToInt32(String value) +63
YAF.Classes.Data.LegacyDb.forum_listall_fromCat(Object boardID, Object categoryID, Boolean emptyFirstRow) +124
YAF.Classes.Data.LegacyDb.forum_listall_fromCat(Object boardID, Object categoryID) +7
YAF.Pages.Admin.editforum.BindParentList() +82
YAF.Pages.Admin.editforum.BindData() +265
YAF.Pages.Admin.editforum.Page_Load(Object sender, EventArgs e) +624
System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +14
System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +35
System.EventHandler.Invoke(Object sender, EventArgs e) +0
System.Web.UI.Control.OnLoad(EventArgs e) +99
System.Web.UI.Control.LoadRecursive() +50
System.Web.UI.Control.LoadRecursive() +141
System.Web.UI.Control.LoadRecursive() +141
System.Web.UI.Control.LoadRecursive() +141
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +627
--------------------------------------------------------------------------------
Version Information: Microsoft .NET Framework Version:2.0.50727.3620; ASP.NET Version:2.0.50727.3618