new lightroom installation sees image names but no images
I just installed Lightroom Classic as a trial on my win8.1 laptop.
When importing JPGs or RAF files from my camera's SD card Lightroom sees the filenames but the actual images are not displayed. Lightroom goes through the motions of importing and pretends to display the images but nothing is displayed. The same happens when I try to import existing files from my hard drive.
I have an old version of Photoshop which opens all images (on hard drive and SD card) just fine.
Also, I turned off AVAST and tried again to import but no difference.
I want to purchase the product but if it doesn't work I obviously won't
