Mouse constantly disconnecting/reconnecting, already tried many fixes

My Steelseries Diablo 3 mouse is constantly disconnecting and reconnecting from my computer for ~3-30 seconds at a time and occasionally becomes unresponsive until I restart the computer (unplugging and reconnecting mouse won't even bring it back online). When this happens, the computer makes the same noise as if I were to physically unplug the mouse from the computer and then plug it back in. It seems to happen more often while gaming then normal internet browsing (though it may just seem like it happens more often because gaming requires more constant mouse movement then browsing the internet).

So far I have already tried...

• updating drivers (this includes for all my Universal Serial Bus controlers and all my Human Interface Devices)
• Uninstalling & reinstalling all Steelseries software
• making it so that Windows cannot turn power off to all usb Root Hubs
• performing a clean boot
• Running scans with Avira antivirus, Spybot & Malwarebytes Anti-Malware
• changing mouse to a brand new Razor Naga(which also disconnects & reconnects but FAR less often)
• using several different usb ports to plug mice into

There may be a 1 or 2 more things I've also tried but just cannot recall them ATM. All my other devices seem to work fine(except for possibly my logitech webcam/Mic, occasionally i will try to use it on Teamspeak and the Mic will not work until I reset the computer, However, I use this far less frequently and do not know if it related to my mice problems).

I would really like to avoid either of the 2 options that i feel i am being driven towards; either taking the computer in to a shop for possibly expensive repairs or just wiping the computer & putting it back to factory settings. If anyone has any other ideas please let me know

Computer Specs
OS Name Microsoft Windows 7 Home Premium
Version 6.1.7601 Service Pack 1 Build 7601
System Manufacturer MSI
System Model MS-7622
System Type x64-based PC
Processor AMD Phenom(tm) II X4 955 Processor, 3200 Mhz, 4 Core(s), 4 Logical Processor(s)

Hi welcome to 7F

do other usb devices disconnect when plugged in? can you try just a cheap mouse even though you tryied a new mouse try a basic mouse.

I do have one more bit of information that I've come across since posting my original thread. Both mice were going in & out but since then I have unplugged the SteelSeries mouse, mostly out of annoyance/frustration, and the Razor Naga mouse has not disconnected/reconnected since then and it has been well over a week (while both mice were plugged in the Razor mouse would only be unresponsive ~once a day). This makes me think now that the problem somehow was with the original SteelSeries mouse all along but if that is the case then how could the hardware issues of one mouse affect another mouse with no problems? Will a MEMTEST still tell me what the issue is if I plug both mice back in and the SteelSeries starts causing the same issues?

Yes & no, The SteelSeries mouse started disconnecting/reconnecting when it was plugged in by itself. I was tired of the SteelSeries mouse going out while gaming so i was using the Razor Naga as a sort of back up mouse that I could switch to quickly so i could still move my in game character. While both mice were plugged in at the same time(different usb ports obviously) I was experiencing the SteelSeries mouse go in & out often (~ once every 30 min) where the Razor Naga would only be unresponsive ~every few hours.