Classic ASP Errors on Large Result Set with No Information

Check the IIS log.

I this case the IIS buffer had to be increased.

Example log message: 2012-07-02 19:46:09 W3SVC1522741043 127.0.0.1 POST /Reports/Reports_Var_CC_Rev.asp |0|ASP_0251_:_80004005|Response_Buffer_Limit_Exceeded 655 UCSFMC\kellyjoe 127.0.0.1 Mozilla/4.0+(compatible;+MSIE+8.0;+Windows+NT+5.2;+Trident/4.0;+.NET+CLR+1.1.4322;+.NET+CLR+2.0.50727;+.NET+CLR+3.0.04506.30;+.NET+CLR+3.0.04506.648;+.NET+CLR+3.0.4506.2152;+.NET+CLR+3.5.30729;+.NET4.0C;+.NET4.0E;+InfoPath.3) 500 0 0

http://support.microsoft.com/kb/925764