Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Mac OS X problems

there are no Mac OS X drivers for this card, either included with it or available on the companies website. it is supposed to "just work", which it does. however, installing the card prohibits the computer from being able to go to "deep sleep", meaning that you're fan will be on no matter what you do -- short of turning the machine off. credit to their tech support for responding to my question about this issue promptly, but their response was not what I wanted to hear: "Our card may not allow your computer to Deep Sleep properly. We are looking into the cause of this issue and when we find the cause of the problem, we will fix it (if it is our problem)." in the meantime, I'll be returning it. I'll try the more expensive Belkin next, to see if it works.