Crystal report parameter pop up issue

Hi,

I am using VS 2010. I have crystal reports 8.5. I am calling those crystal reports from asp.net application using the crystal report viewer and report document code. I am passing paramter to the crystal reports. Inspite of doing that, it is asking me for paramters. The parameter pop up opens whenever I try to load the report. I have downloaded the crystal report for VS 2010 from this document. Could someone please help me with this.

Thanks.