Hi guys ... Encoutered the blue screen on my notebook running on Windows XP Pro. Details as below:- Technical Information: STOP: 0x000000D1 (0x2E352E3E,0x00000002,0x00000000,0xB6883703) fwdrv.sys - Address B6883703 base at B685A000, DateStamp 43a1f89d Need to know if this is hardware or software related error. New setup, everything running fine until I installed Ad-Aware and Sunbelt Kerio PF. Appreciate any input if any. Thanks.