Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Bye, CA

I've used and upgraded CA products for years without trouble. Easy to use, operated quietly in the background. Solid.After installing the 2007 version according to the instructions, this upgrade proved to be nothing BUT trouble. Made several software programs function irratically or not at all. Made Windows XP thoroughly unstable, never previously an issue on my system. A disappointment for sure.Rather than 'argue' with Security Suite 2007, I gave in and bought different software.