i'm getting an error when trying to view various things in the event viewer.  has the upgrade failed to update all of the components?  is this something that can be fixed?  doing a clean install is NOT an option.

here's a copy of the page load exception:

AssemblyVersion: 04.05.03
PortalID: 0
PortalName: <myportalname>
UserID: 1
UserName: host
ActiveTabID: 48
ActiveTabName: Event Viewer
RawURL: /Admin/LogViewer/tabid/48/Default.aspx
AbsoluteURL: /Default.aspx
AbsoluteURLReferrer: http://<mydomainname>/Admin/LogViewer/tabid/48/Default.aspx
UserAgent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 1.1.4322; InfoPath.1; IEMB3; .NET CLR 2.0.50727; IEMB3)
DefaultDataProvider: DotNetNuke.Data.SqlDataProvider, DotNetNuke.SqlDataProvider
ExceptionGUID: ef3bd29a-c705-484e-9691-0fc108bca9e5
InnerException: Element 'LogProperties' was not found. Line 1, position 2.
FileName:
FileLineNumber: 0
FileColumnNumber: 0
Method: System.Xml.XmlReader.ReadStartElement
StackTrace:
Message: DotNetNuke.Services.Exceptions.PageLoadException: Element 'LogProperties' was not found. Line 1, position 2. ---> System.Xml.XmlException: Element 'LogProperties' was not found. Line 1, position 2. at System.Xml.XmlReader.ReadStartElement(String name) at DotNetNuke.Services.Log.EventLog.LogProperties.Deserialize(String content) at DotNetNuke.Services.Log.EventLog.DBLoggingProvider.DBLoggingProvider.FillLogInfo(IDataReader dr) at DotNetNuke.Services.Log.EventLog.DBLoggingProvider.DBLoggingProvider.GetLog(String LogType, Int32 PageSize, Int32 PageIndex, Int32& TotalRecords) at DotNetNuke.Services.Log.EventLog.LogController.GetLog(String LogType, Int32 PageSize, Int32 PageIndex, Int32& TotalRecords) at DotNetNuke.Modules.Admin.Log.LogViewer.BindData() at DotNetNuke.Modules.Admin.Log.LogViewer.ddlLogType_SelectedIndexChanged(Object sender, EventArgs e) at System.Web.UI.WebControls.ListControl.OnSelectedIndexChanged(EventArgs e) at System.Web.UI.WebControls.DropDownList.RaisePostDataChangedEvent() at System.Web.UI.WebControls.DropDownList.System.Web.UI.IPostBackDataHandler.RaisePostDataChangedEvent() at System.Web.UI.Page.RaiseChangedEvents() at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) --- End of inner exception stack trace ---
Source:
Server Name: JILLC-WS17

The advice I received, I believe from Leupold, was to clear out all entries to the log (event) viewer and let it start over with a clean slate. There must have been some changes in the log viewer which are not compatible with older entries.

Edit: This advice was effective in my case, I might add.

I have same problem with DNN 4.5.5

I upgraded dnn from 3.x to 3.3.7 then i upgraded from 3.3.7 to 4.3.7 without errors, after that 4.3.7 to 4.5.5 i only have following error:

ModuleId: 360
ModuleDefId: 79
FriendlyName: Journal des logs
ModuleControlSource: Admin/Logging/LogViewer.ascx
AssemblyVersion: 04.05.05
PortalID: 0
PortalName: Brasserie Chez le Père Gédéon
UserID: 1
UserName: host
ActiveTabID: 48
ActiveTabName: Logs
RawURL: /Admin/LogViewer/tabid/48/Default.aspx
AbsoluteURL: /Default.aspx
AbsoluteURLReferrer: http://www.peregedeon.com/Admin/SiteLog/tabid/44/Default.aspx
UserAgent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.6) Gecko/20070725 Firefox/2.0.0.6
DefaultDataProvider: DotNetNuke.Data.SqlDataProvider, DotNetNuke.SqlDataProvider
ExceptionGUID: 0cf4b734-f534-46ad-aa35-bdc39b4aa0ef
InnerException: Element 'LogProperties' was not found. Line 1, position 2.
FileName:
FileLineNumber: 0
FileColumnNumber: 0
Method: System.Xml.XmlReader.ReadStartElement
StackTrace:
Message: DotNetNuke.Services.Exceptions.ModuleLoadException: Element 'LogProperties' was not found. Line 1, position 2. ---> System.Xml.XmlException: Element 'LogProperties' was not found. Line 1, position 2. at System.Xml.XmlReader.ReadStartElement(String name) at DotNetNuke.Services.Log.EventLog.LogProperties.Deserialize(String content) at DotNetNuke.Services.Log.EventLog.DBLoggingProvider.DBLoggingProvider.FillLogInfo(IDataReader dr) at DotNetNuke.Services.Log.EventLog.DBLoggingProvider.DBLoggingProvider.GetLog(Int32 PageSize, Int32 PageIndex, Int32& TotalRecords) at DotNetNuke.Services.Log.EventLog.LogController.GetLog(Int32 PageSize, Int32 PageIndex, Int32& TotalRecords) at DotNetNuke.Modules.Admin.Log.LogViewer.BindData() at DotNetNuke.Modules.Admin.Log.LogViewer.Page_Load(Object sender, EventArgs e) --- End of inner exception stack trace ---
Source:
Nom du serveur: WEBRBC

Following command helps to clear EventLog table

Use at your own risk

select count (logguid) from eventlog (tells you how many entries located at EventLog table)

TRUNCATE TABLE EventLog (i guess deletes all entries in Eventlog)

SQL Queries are provided by Horacio (Evotiva developer)

Any other ideas to keep Event Viewer cool? Because it drops again after a few moments.