Absolutely fed up with the mouse being sluggish !!! This has just started ! cannot continue with my work !! Also I am fed up to the teeth when inserting a card it says ' not ejected properly '. what is this all about !! So angry !!!

Are you writing to the right people. You may be using an Apple mouse but your machine is AMD and you run Windows on it.

So we cannot help about the card question. The mouse may be sluggish because of the way AMD works or it may be due to interference. Feed 'Apple Mouse interference' into Google and take note of what you find.

Then you need to update your profile which says what I wrote and has no reference to Mac or Yosemite. So what is this card you are referring to?

I still think your problem is one of interference and this is what I recently wrote to someone else on this subject. It might help you.

Installing Yosemite has been reported many times as the point at which mice or trackpads become unstable. I have read nothing from Apple to suggest it is a known fault point. But things change around the home and even the individual. It is always worth reading these two Apple documents carefully as a starting point.

https://support.apple.com/en-us/HT203171

https://support.apple.com/en-gb/HT201542

And ... ?

Also I am fed up to the teeth when

inserting

a card it says 'not ejected properly'

what is this all about !!

How are you ejecting it? You need to drag its' icon to the trash to properly dismount it - then you can pull it out. If you simply unplug it, you may experience loss of data or images.

FWIW, we are all other users here volunteering our time to help users like you. You may be angry, but it helps to maintain a certain equilibrium when seeking help here. It also helps to actually include important information as to the Mac model/year, OS version, etc. We cannot see your equipment.

Edit: I've tried to adjust the quoted portion - to no avail; the advanced editor is not cooperating.

That should be ok - do you have any files or anything else open/in the background when you eject it? It's best to actually quit (Command + Q or File menu > Quit) anything open - just closing the window does not quit the application by the way.