Lycos chat won't work on my PC anymore.

Hi,

Have used Lycos chat once in a while, now the link I use no longer works, tried other means of getting there and tried signing up a new name.. I get the following screen.. It's something I've inadvertently done to my PC.. can anyone decipher this and tell me how to fix it please?

Server Error in '/LSU' Application.
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Configuration Error
Description: An error occurred during the processing of a configuration file required to service this request. Please review the specific error details below and modify your configuration file appropriately.

Parser Error Message: Unable to load file 'Lycos.Service.ChatV5.Community.Helpers.Web'.

Source Error:


Line 256: <add assembly="System.EnterpriseServices, Version=1.0.5000.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a"/>
Line 257: <add assembly="System.Web.Mobile, Version=1.0.5000.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a"/>
Line 258: <add assembly="*"/> (THIS IS HIGHLIGHTED)
Line 259: </assemblies>
Line 260:


Source File: c:\windows\microsoft.net\framework\v1.1.4322\Config\machine.config Line: 258

Assembly Load Trace: The following information can be helpful to determine why the assembly 'Lycos.Service.ChatV5.Community.Helpers.Web' could not be loaded.


=== Pre-bind state information ===
LOG: DisplayName = Lycos.Service.ChatV5.Community.Helpers.Web
(Partial)
LOG: Appbase = file:///D:/http/chat.lycos.uk/LSU
LOG: Initial PrivatePath = bin
Calling assembly : (Unknown).
===

LOG: Policy not being applied to reference at this time (private, custom, partial, or location-based assembly bind).
LOG: Post-policy reference: Lycos.Service.ChatV5.Community.Helpers.Web
LOG: Attempting download of new URL file:///C:/WINDOWS/Microsoft.NET/Framework/v1.1.4322/Temporary ASP.NET Files/lsu/4a35a230/5ee54f52/Lycos.Service.ChatV5.Community.Helpers.Web.DLL.
LOG: Attempting download of new URL file:///C:/WINDOWS/Microsoft.NET/Framework/v1.1.4322/Temporary ASP.NET Files/lsu/4a35a230/5ee54f52/Lycos.Service.ChatV5.Community.Helpers.Web/Lycos.Service.ChatV5.Community.Helpers.Web.DLL.
LOG: Attempting download of new URL file:///D:/http/chat.lycos.uk/LSU/bin/Lycos.Service.ChatV5.Community.Helpers.Web.DLL.
LOG: Publisher policy file is not found.
LOG: No redirect found in host configuration file (C:\WINDOWS\Microsoft.NET\Framework\v1.1.4322\aspnet.config).
LOG: Using machine configuration file from C:\WINDOWS\Microsoft.NET\Framework\v1.1.4322\config\machine.config.
LOG: Post-policy reference: Lycos.Service.ChatV5.Community.Helpers.Web, Version=1.0.1.0, Culture=neutral, PublicKeyToken=89b632e03f783b90




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Version Information: Microsoft .NET Framework Version:1.1.4322.2032; ASP.NET Version:1.1.4322.2032