Hi, I'm having this weird problem, it has happened to me on two different computers. I bought my Windows 7 four or five months ago and at that time I was on an AMD Dual Core computer with an NVidia 9600GT. At some point, my USB ports were going crazy like my mouse stopped working for a short period of time and restarted again. Sometime, my mouse won't even restart. I've bought this new computer one or two months ago and it's doing the same thing but this time my mouse totally crash. Here are my new computer specs: Intel Core i7-2600 CPU @ 3,40 GHz 8 Gb Ram Windows 7 64 bits Graphics : Nvidia GTX 560 My mouse is a Logitech G500 I've made sure all my drivers are up-to-date and my Windows is correctly up-to-date. When the problem happens, I have to find a way to reboot my computer. When it's rebooted, everything works fine. PS: I thought it had something to do with my mouse but my Magic Jack also go crazy and stop working properly.