I use this keyboard G19 Windows 7 64. It is solid and practical but suffers from a big problem. He sometimes off a dozen times during the same day (yes it can work several days without problems). A catastrophe that when the screen turns on again and remains stuck on the Logitech G logo your macro keys no longer work at all and I do not mean the problem caused by an interruption of service of ten seconds in. After research with SAV Logitech and on the Net I discovered that this problem affects Europe and America a considerable number of customers. There are thousands of post complaints that are found in the forum. But, alas, there is no solution because Logitech attributed the problem to the motherboards, mobile phones, viruses etc but never to a faulty software or firmware which seems the advice of experienced users. Please note that the Logitech G15 sold by Amazon (monochrome screen) it does not know this problem. For such an expensive product, and whose screen is especially useful for RSS and to tell you that talks on Teamspeak or Mumble the G19 bill is very salty. We could at least expect the manufacturer to a problem that has treated over 2 years. For now it's back round because there is no competitor in this market segment. This is pitiful.
