Icybox SATA/USB3hd has disappeared from W7, but appears on other PC

[2pods]

As above really.

I have a 1gb Seagate drive in an powered Icybox SATA to USB3 enclosure, that has disappeared from my desktop machine. It doesn't show up in drive management, or the bios, even if I change USB sockets (including USB2). The drive is spinning up and W7 makes a USB connect noise, but just won't see the drive. It was going fine for about a month before. My PC sees my unpowered external USB3 drive

However, if I plug it into my laptop (USB2 granted), it's there.

 

[DeaconFrost]

Once you have it connected to your desktop machine, open Disk Management to see if it shows up there. I may just need a letter assigned to it.

 

[2pods]

Tried that before I posted

It doesn't show up in drive management, or the bios,

 

[DeaconFrost]

Do you get any sounds to acknowledge the USB device being plugged in?

 

[2pods]

Yes.
I've worked out what's happening, how to fix it, but not why it happened.
It's actually seeing the enclosure as a DTMB BDA TV USB device. I don't know why, as it was working before as a VSi something or other.

I selected "update driver" and selected USB storage device, and it's reappeared. Hopefully, it will stay like that.
I don't know why it happened though.