Hi, I have a 160GB external portable Hard disk that I have formatted to EXT3 type. It works fine plugged into PC (with drivers). However when I plug it into Humax, the Humax does not recognise it is there. Though when I unplug it, I get a message 'USB device has been disconnected'. Also if I leave it in the Humax and power up the Humax, the Humax hangs at the beginning of booting. I tried using a mains powered USB Hub, but this also causes the Humax to hang at boot. I also have a 16GB memory stick (ext3) this works fine. Any help would be appreciated.