Bit of a weird one, I hope someone can help with this. I have had an occasional "graphics" lockup on my last system, in Logic 9 which results in the mouse "rubber banding" and getting stuck in that mode. There is no way out, song wont play and all functions stop, however the "force quit" doesn't show Logic program as "not responding" !! New system, new Mac Logic X with the same Logitech MX1000 laser mouse, has just started to have the same issue !! well, that's all that is constant between the 2 x systems - the MX1000 mouse. Any ideas ? Should I just dump the mouse and go with something more up to date? The last proper driver for it was for 10.6.8 so it's just running as a generic mouse in OSX. I have an Apple "MAgic mouse" but it really hurts my hand - too flat !! Thanks for any advice, Martin.