Very pleased to have found this topic. My Spyware Doctor subscription has expired as of yesterday and the Nod32 av will expire at month's end. I experienced many frustrating slowdowns with SD during the year, but was happy with the detection (or was I mislead to believe my computer was free of spyware/malware?). As for Nod32, every system scan resulted in no infections detected. Now, I am considering the purchase of the Nod Security Suite and an anti-spyware/malware program other than SD. Any advice?