I rooted my phone on 2.1 and didn't unroot before updating to the official 2.2. Now it seems that it is unrooted but the SU app is still there. I tried a factory reset but to no avail. I tried to root it again with unrevoked but its getting stuck at 'Waiting for root..(safe to restart if this doesnt work)'. I had rooted my 2.1 using unrevoked only a week back. Any advice on how I can root it again would be helpful. At the moment its working smoothly but i would prefer to root it.