KVM Switching

hello all! i have recently purchased a 2 port usb kvm switch, to switch between my powermac g5 and my windows desktop. Im just using this device to use one keyboard and mouse on both systems, I have a monitor for both systems so im not using the monitor swap feature, nor do i have the vga cables hooked up, i just have the usb cables attached. so here is my dilemma, this device has a hot key swapping feature, that allows you to double tap "scroll lock" to switch between the two systems. it works fine when switching from my windows machine to the mac, however it does not work when im switching back from the mac to the windows computer. i have to manually hit the interface button on the kvm device, witch isn't a big deal i would just like to easily swap with a hot key and remove this cluster of wires from my desktop. I am currently using a Razer Lycossa keyboard and a Razer Deathadder mouse. Razer currently doesn't offer drivers for mac os, and my mac does not recognize the keyboard, it works on the mac its just unrecognizable. If some brilliant mind could help me troubleshoot this i would be forever grateful! thanks for taking the time to read my troubles and thanks for any pointers you could offer. Ive been searching the internet for a solution but have came up empty handed.

Thanks again guys!
Mitch-