And I don't think that a third mouse would work, as I've plugged my old and new mice into different USB ports, into the front ones as well and they don't get recognised as a plug and play. The only thing that works is my old mouse in the original port I've had it in since time immemorial. I've even tried a device which allows multiple USB ports from the one port and even that wasn't recognised and the PC tried to download/find software for it
My speakers work in the other ports, funnily enough, but the mice don't. The light comes on but no one is home.
I've gone through my BIOS and tried to jiggle some things but nothing has worked. I think the motherboard needs updating or replacing, or something does. How do you update the motherboard drivers and BIOS? I'm not a total newbie but I know my way around the PC well enough.
P.S. this is my 2nd brand new mouse, as I took the 1st one back thinking it was broke. I know better now.