Read and Write protected memory issue

Hi,

I have added a Crystal Report Viewer in my Custom Report page. I'm using Data Set as a data source. The page is loading fine with report data first time. I When i click the next page button it is started loading the report forever. I could not stop the loading. When i refresh the page i'm getting the following error message.

Attempted to read or write protected memory. This is often an indication that other memory is corrupt.

My page has 4 check boxes with different Report name. Based on the Report check box selection, first i'm loading the Data set then assigning into Crystal Report Viewer. First time the report loading fine(with the paging issue). When i select the next report check box and load the report, i'm getting the same error.

Please help me to fix this issue.