I am a user of Logitech mouses for the last 10 years and I recommend them to everyone for their reliability.
Right now I am using two wireless mouses with small nano receivers. These mouses are excellent and one I am using on Win XP Professional, and the other I am using on Win 7 Ultimate x64.
Logitech has recommended that I use setpoint software on my old wireless mouse on Window XP, and I have installed the latest setpoint software. I always update the setpoint software whenever an update is available. This mouse is in use for the last two years and I never had any problem.
Coming to the Second Logitech wireless mouse (M215) Logitech suggested that no setpoint software is necessary for using this mouse. So I am using this mouse with Windows 7's native mouse drivers
for the last three months and never had any problem.
So what I suggest is that if Logitech suggests setpoint software for your particular model of mouse, then you better download and install it. This will improve the performance and also give you some additional customizations to your mouse.
I hear the bluetooth mouses sometimes gives problems, but I do not have any experience with them.
Hopefully once you install the Setpoint drivers your mouse should work properly.
Another aspect is check your power saving features. If your system has wakeup features for the mouse, I suggest you switch off this feature.