I bought two of these USB wireless adapters, one of which stays on all day. Both worked without problems. What I've learned is that "Windows Vista sucks!" especially when it comes to wireless. I have many friends who are having problems with their wireless connection on Windows Vista with many different wireless cards and USB adapters, constantly losing connection, losing signal and sometimes having to reboot. Maybe people have problems with this point caused by Vista. From what I can tell, this is a good product in my experience. I bought my third USB adapter and have no complaints.
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