Well, I guess I'm one of the lucky people who still own a MX300 - anyways
after months of using some problems appeared.
I'm not quite sure if it's because of the mouse itself (cable.. etc) but any other mice work fine.

The problem is that sometimes - RANDOMLY (means it doesnt happen when I move the mouse very fast - Im low senser btw) the mouse stops working, you can hear it disconnecting and reconnecting, too (usb port)

I tried the mouse on several pcs now and same problem occurs. It really happens like 2-3 times in like 15minutes, sometimes more, sometimes less. Is it because of the cable or anything? The mouse got never damaged anyhow.

And If it is something wrong with the mouse, is it possible to send it to Logitech or any hardware company to repair it?

Thanks in advance.