Hi Sue. Welcome to justanswer.
Is your camera being shown in your computer?
Right click on any image and choose open with. Choose a different program to open pictures
Can you opt for remote assistance so that I can access your computer and resolve the issue?
Oh then those are only temporary files
Are they greyed out?
No, if the photos are saved on the computer then changing the settings on the camera will not alter anything to those photos
Are you using Windows?
Auto mode will not casue any issue. Now go to the images that are not opening. Right click on any one. Go to Properties and tell me what is the size of the image
That maybe the problem with the memory card
Take all the photos from the memory card and then format the card once. This will resolve the issue.
Please rate the chat positively by clicking the 5 stars present on the upper panel so that I can get credited for my services. Thanks.
Yes sure. I will mark the question to remain open in case you need any help
Don't forget to rate the chat. Bye