Mouse pointer randomly freezes

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http://crunchbang.org – Hi all,I'm running the latest crunchbang testing (64-bit Waldorf) on my desktop, and am having trouble with my mouse cursor randomly locking up. System is otherwise running fine, the keyboard continues to work and I can continue to move the mouse using xkbset -m. But, the mouse does nothing once it decides to poop out. I'm using a logitech MK300 wireless KB and mouse combo. I thought it might be a kernel issue, and installed the latest liquorix kernel, but the same issue continues. I also installed the latest nvidia drivers, thinking there might be a conflict, but no joy. uname -r gi (HowTos)