Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Freezes up like crazy

I purchased this hard drive about a year ago, and I hate it. When my powerbook goes to sleep, it freezes. I contacted the company and they said they were aware of the problem but could not fix it. Now, if I don't use the drive for 15 minutes, if freezes and I have to manually remove it from the computer to reset it. I do not recommend using this to backup important data as it is simply not reliable.