Ok my desire is now losing vibration pretty much every single day. Tried lots of different ways to get it back, and to it's credit lol it usually turns up one way or another. Well I think I've isolated the problem to a manufacturing fault, at least on my phone - no idea if it's across the board or I'm just lucky When the vibration disappears try giving the back of the phone a slight tap (no I don't mean against the side of a desk/table), just with a couple of fingers. I've done this as soon as I've realised the vibration has gone and it's immediately come back every time (3 times over 3/4 days). It would seem in my case this is a handset fault so as soon as I can live without it for a fortnight I'll get it sent back. Oh and it's worth noting I'm very careful with my phone and treat it with the respect it deserves, apart from the occasional clout now I know that's what it needs lol.