Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Defective software

The "convenient" install went OK. After it was installed, I immediately registered the product on-line and downloaded the latest update (both content and an apparent bug-patch).Nevertheless, this piece of software seems to have a memory leak, and typically uses 320 Megabytes of system memory EVEN AFTER I QUIT THE APPLICATION. This requires me to re-boot my computer to regain usage of HALF OF MY SYSTEM MEMORY. This is inconvenient, and utterly ridiculous for modern software.Unless you enjoy re-booting your computer everytime you use the Britannica, I advise you to NOT buy this software. This saddens me, because I like the textual content. The multi-media element,however, leaves much to be desired.System details:- Macintosh 867 G4- 640 MB RAM- OS X 10.1.4