SSRS report throwing run time error from report manager

Hello,

When i am running few reports that have 3+ parameters having many values (>100) then sometime the report is throwing the runtime error as described below;

Webpage error details

User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; InfoPath.2; MS-RTC LM 8; .NET CLR 2.0.50727; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729; .NET4.0C; .NET4.0E)
Timestamp: Wed, 8 Feb 2012 14:34:12 UTC


Message: Sys.WebForms.PageRequestManagerServerErrorException: An unknown error occurred while processing the request on the server. The status code returned from the server was: 500
Line: 5
Char: 62099
Code: 0
URI: http://pit-as-sqldbp03/Reports/ScriptResource.axd?d=LSM-sIjIq1I3gqXWAV4-sDoSzT66sEJz0Rf8Iko-xIr2Gk6IIEtfrAeXLKMBVKsD2PT8EUa4dck9Tp5I-r0TEVxM92WQtwDjvg68Dmnv4K3LrV1y76r-Wu_gAfNLZfJynNkH3Pmt7ock4K7L4NUbzk8TrdU1&t=ffffffff8dc250fc


I googled this for SSRS and got one link http://www.sqlservercentral.com/Forums/Topic1245595-150-1.aspx that says that it could be caused due to data-type exceeding its limit

Can anyone help me for this? What is the cause & solution of the problem causing such error??

Please help me!!!