Windows Event ID 1309

I am evaluating the FileVista program and have a setupw orking fine. 

The upload only works sometimes, not all the time.

in the Windows Eventlog of the server I have these errors:

Event Type:    Warning
Event Source:    ASP.NET 2.0.50727.0
Event Category:    Web Event 
Event ID:    1309
Date:        2008-06-24
Time:        08:55:25
User:        N/A
Computer:    COMPUTER
Description:
Event code: 3005 
Event message: An unhandled exception has occurred. 
Event time: 6/24/2008 8:55:25 AM 
Event time (UTC): 6/24/2008 6:55:25 AM 
Event ID: 686fb171c0b94f42a4c5ac00639c598c 
Event sequence: 116 
Event occurrence: 1 
Event detail code: 0 
 
Application information: 
    Application domain: /LM/W3SVC/1/Root/filevista-2-128587634046875000 
    Trust level: Full 
    Application Virtual Path: /filevista 
    Application Path: D:\Inetpub\WebSites\FileVista\ 
    Machine name: COMPUTER
 
Process information: 
    Process ID: 4556 
    Process name: w3wp.exe 
    Account name: NT AUTHORITY\NETWORK SERVICE 
 
Exception information: 
    Exception type: HttpException 
    Exception message: An unhandled exception occured in the upload module. 
 
Request information: 
    Request URL: http://xxx.com/filevista/filevistacontrol/upload.aspx?rootFolderID=0&relativePath=&ASP.NET_SessionId=khofzhyktalluvufx2t1x2vz&FT.Active=1&FT.OverrideProvider=1&FT.UploadID=12142904142573694 
    Request path: /filevista/filevistacontrol/upload.aspx 
    User host address: 90.227.111.106 
    User: mike 
    Is authenticated: True 
    Authentication Type:  
    Thread account name: NT AUTHORITY\NETWORK SERVICE 
 
Thread information: 
    Thread ID: 8 
    Thread account name: NT AUTHORITY\NETWORK SERVICE 
    Is impersonating: False 
    Stack trace:    at GleamTech.Web.FileTransfer.UploadHttpModule.a(Object A_0, EventArgs A_1)
   at System.Web.HttpApplication.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
   at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)
 
 
Custom event details: 

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.

Do you experience this problem only with IE7 or also with Firefox 2+ ?

Do you get the same results with both flash upload and browser upload modes?

I have sent you an updated file via email so that we can see a more detailed error message in the event log.

FYI, we fixed this issue in v3.2.2.
The problem occured in Flash upload mode when uploading more than one file at once. The error was occuring when one of the files took long time to finish, causing a timeout and stopping the overall upload with an error message.