Bests & Worsts Reviews from Amazon

I'm so disappointed! All these good reviews for this thing, and it doesn't work right. Let me say here that I tried it with my HP desktop and Dell laptop and get exactly the same results. Specifically: I hooked it up per the instructions, turned it on, and... nothing. The computer didn't even see it. So I unplugged the USB cable and when I plugged it back in, the computer saw it and it came up. Great! Turned it off, turned it back on... nothing. After MUCH experimentation I found that the drive must be powered on BEFORE being plugged in to the computer, which is not only contrary to the instructions, it's just stupid. It means you either have to let the drive spin constantly (stupid) or you have to disconnect the drive from the computer every time you turn it off (again, stupid). If you leave the drive spinning, you can connect and disconnect the USB cable all you want, it recognizes it every time. Makes no difference whether or not you properly unmount the drive before turning if off. All the good things people have said about the instructions and the ease of putting it together are true but it doesn't really matter because as far as I'm concerned, this is a deal-breaker. I've written to Acomdata and will wait for their response but unless they have a REALLY GOOD idea, this enclosure is going back. Update 6-16-10. Several reviews here have mentioned that the jumper had to be set to CS, not master as the instructions say. That was my problem. After I changed the jumper, it works perfectly. The Acomdata support people obviously don't know about this; they told me to send the drive back. Instead, I remembered about the jumper and tried it. It works great now. (I have told them about it, but don't look for them to re-print their instruction manuals.) Why am I leaving my rating at 1 star? If I hadn't found out about the jumper, I'd have sent the drive back ($$), probably gotten another one which, of course, wouldn't have worked either, then sent it back. (More $$) If my 1 star rating makes people look at this review, it can save some people a lot of trouble.