Please forgive me in advance, because I suspect I am about to ask the "stupidest" question of the day, but there's absolutely no doubt that the problem is in the computer itself and not in the mouse itself? (I'll bet it's not the mouse itself, or you would have just replaced the mouse, but when I read the OP I couldn't help wondering if it was a broken mouse button.)
But then we have PCs, not Macs, so maybe that's why I didn't understand! (My wife has a six year old Acer laptop and I have a four year old Acer laptop. They've worked pretty well for us so far.)
Absolutely not the stupidest question of the day!
It's probably the easiest solution. She doesn't have an external mouse. It's the click-button on her keypad.
In fact, that epiphany came to me after I posted. I called her and suggested that she find someone (maybe the computer lab) who has a USB mouse that she could plug in just to see if that "fixes" the problem. I'm betting it will. A $5.00 mouse is a whole lot cheaper than a new computer.
She called the Apple store and they told her that she could set up an appointment and bring it in, but they don't do repairs on that model any more. They won't even open it up. So what's the point of bringing it in?
Of course, this being St. Patrick's Day weekend, pretending to be Irish for the day is more important than silly computer problems
She probably won't worry about it until she has class Monday morning. I'll let you know what she finds out.
In the meantime -- nrb80, and anybody else, feel free to threadjack. I'm still learning and anybody's input is greatly appreciated because sooner or later I will have to get her a new computer.
Oh, and yes. In the beginning of her college career MS Word was a requirement for e-mailing her papers. I don't know if this has changed.
Thanks, Bright. You posted while I was typing. It's possible to reassign the click button? That's a great thought. I'll do some research.