Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Don't waste time if you use XP SP2

Buying from Amazon.com is great because returns are so painless. I returned my Linksys Bluetooth adapter recently because it behaves badly with Windows ServicePack 2. Another wonderful thing about Amazon.com is the posted reviews prohesized all of this!! I assumed I might be smarter than them, having a Ph.D. and all. Hugh....the installation program warns you of this incompatible marriage. The Linksys USB Bluetooth adapter is unrealiable - Win XP SP2 user beware. So, if you are stuck behind bars and are running Win XP-SP2, this is just the toy to help you pass your days. So, if you Linksys support, think again. After another wasteful morning with Linksys Live Chat support (two separate blokes), they are clueless. So, if you really want wireless connectivity to a cell phone, try something else, like IR. It is probably worth reflecting on why you find so few bluetooth adapters on the market for PCs.