Yeah I came to know it wouldn't work on the 4th gen after I had used the utility already
In the beginning I was able to find it on the I tunes after synchronising it, and as I failed to move songs into it, I decided use the reset utility.
Since then there is no light on the Ipod, and I guess i might have ruined it's software but not sure.
The cable's plugged in properly..no metal part visible, it's all the way in the Ipod. Any other options?