We can try some basic troubleshooting steps and see if that works or not. First we can reset the PRAM and NVRAM of your Mac. Reset PRAM and NVRAM
If that didn’t work, then restart your Mac in Safe Mode. Booting in to Safe Mode will do some limited repairs to the system files. To boot into Safe Mode, turn off your Mac. Turn it back on and immediately hold down the Shift key on your Keyboard. Release the Shift key when you see the gray Apple and progress indicator. Let the Mac boot up to Safe Mode.
If Safe Mode didn’t work, then we can run Disk Utility from Single User Mode. Follow the steps below to run Disk Utility in Single User Mode. Turn your Mac off. Turn it back on and this time hold down the Command (Apple) key and the S keys at the same time. This will boot your Mac into Single User Mode (black screen with white letters). Then type the following commands... /sbin/fsck -fy (note the space between fsck and -fy) If you can't run /sbin/fsck -fy then type only fsk - fy Hit return and the disk utility should run and let it finish. When it finishes and there is no error, then type reboot and hit return. Let the Mac boot up. (Disk Utility will fix all system errors, bad preferences files etc)
Let me know if that didn't work, so we can continue troubleshooting.
I tried your first suggestion, but nothing happened. The start up/chime came on as usual as soon as I switched the machine on, and when I held the keys down nothing more happened.
How do you know the PRAM is reset? There weren't THREE chimes, only the usual ONE chime, and that was before I held the keys down.
A friend if mine who is a techie says he can't see how your suggestion could possibly work.
Why did you not say anything about 6 seconds before?
Your advice is not worth the £56 that I paid. Please let me have a refund.
Hi Mike, Sorry for the delay..My answer is 100% correct as I have seen this problem before. These are the steps recommended by Apple, not by me. We just started troubleshooting and we've not finished yet. Those are the basic troubleshooting steps. Please try my suggestion at least Mike.
Mike, 99% of times your Mac will make chime/startup sound when you reset the PRAM, but sometimes it will not. Usually it will take only 6 seconds to reset the PRAM. The problem is not with the Mouse, but with the system files. That is why we are trying Safe Mode and Disk Utility to isolate the problem and fix it.
If you don't want to continue, you can contact Customer Support at "firstname.lastname@example.org" for refund.
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If you want to continue, please let me know and I will stay with you until we fix the problem. If you are not satisfied, you can always go for refund.