just purchased a roccat mouse and keyboard for my rig which spec is below. Case COOLERMASTER CM STORM TROOPER Processor (CPU) Intel® Core™i5 Quad Core Processor i5-4670 (3.4GHz) 6MB Cache Motherboard ASUS® Z87-A: ATX, USB2.0, USB3.0, SATA6GB/S, SLi, XFIRE Memory (RAM) 8GB KINGSTON DUAL-DDR3 1600MHz (1 x 8GB) Graphics Card 3GB NVIDIA GEFORCE GTX 780 Ti - 2 DVI, HDMI, DP - 3D Vision Ready Memory - 1st Hard Disk 120GB KINGSTON HYPERX 3K SSD, SATA 6 Gb/s (upto 555MB/sR | 510MB/sW) 2nd Hard Disk 2TB WD CAVIAR BLACK WD2002FAEX, SATA 6 Gb/s, 64MB CACHE (7200rpm) 1st DVD/BLU-RAY Drive 24x DUAL LAYER DVD WRITER ±R/±RW/RAM Memory Card Reader INTERNAL 52 IN 1 CARD READER (XD, MS, CF, SD, etc) + 1 x USB 2.0 PORT Power Supply CORSAIR 1050W PRO SERIES™ HX1050-80 PLUS Processor Cooling Super Quiet 22dBA Triple Copper Heatpipe Intel CPU Cooler Sound Card ONBOARD 6 CHANNEL (5.1) HIGH DEF AUDIO Wireless/Wired Networking 10/100/1000 GIGABIT LAN PORT USB Options MIN. 2 x USB 3.0 & 4 x USB 2.0 PORTS Operating System Genuine Windows 7 Home Premium 64 Bit. i am still running my old system and this one using / aten kvm switch cs62u but i had loads of trouble getting the keyboard and mouse too work. have latest drivers from aten on both comps but they were not recognising the keyboard or mouse. finally got the keyboard to work with kvm switch but only by using my old cherry usb dongle in the kvm switch next to keyboard usb ??? if i take it out it doesnt work ??. cannoty get the mouse too work only by usb connection this is for both keyboard & mouse will work using basic usb connection on both computers. i have tried re:booting both pc,s with both mouse and keyboard connected to kvm but nothing mouse pointer goes haywire and to the top off screen and keyboard nothing. getting fed up now atan site is not very helpful have tried hot keys but nothing , even tried to turn off emulation but its not having it? any help appreciated. the weirdest thing is the keyboard will work on both computers plugged into kvm switch with old cherry remote dongle in next to it were mouse usb should be ???"!.