Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Beware of Incompatability

I have been using norton antivirus for years with no problems. But the firewall is another story. If the firewall from Norton Internet Security is enabled, you cannot get onto AOL. I spent hours trying to configure it to work and contacted technical support to no avail. AOL response is norton's firewall rarely works for AOL users because AOL has its' own firewall. It is unfortunate that the largest internet service provider (AOL) and the largest Internet Security company (Symantec Norton) are not compatible.