Nobody should download synapse 3, rather just 2. Of course, you do not delete the 2 so if you put the 3 next to it, then you have to manually delete the 2 and then the 3 again if you put it next to it because it does not start. Then if you put the 3 on clean then you will start, but if you re-start the machine afterwards no longer. Seriously razer? How to issue an OFFICIAL software that does not work or even runs out. With 2, there's never been a problem. I did not think that with a mouse software you have to get so fucked up.