It doesn't work under M4 the pointer is there but you can't move it, in fact I had to install it in M3 and upgrade to M4. But Cheese does work, The HP bluetooth is on the settings list, strange it doesn't work was working, but I looked at a Live Disk and now it doesn't work I thought that those things didn't change anything unless you installed them.
Instead of curing that problem I've bought a combined keyboard/hub so now I can daisy-chain my keyboard and mouse and I don't need a USB for my bluetooth adapter dongle.this happened because I bought a new computer chair, as my back was aching I bought a desk with a keyboard because I felt like it.