Can't See Downloaded Files

Recently - I've been having a strange problem. when I download a photo or image, or even capture a screen shot and save it to a folder, I cannot see it in that folder. I originally thought i had not hit save properly or not saved a file that I thought I had - but when i tried to re download an image or capture it again and name it the same thing - I got a message saying there was already a file by that name in the folder.

I have tried ensuring all hidden files are shown, and refreshed the window to no avail. but when i restart the computer, I am able to see the files in the folder as the should have been displayed all along. also confusing - when i look in the folder after saving...say if I've saved 12 images into the folder from the net or screen capture, but the folder is only displaying 1 image - it was say the folder only contains one image...

how can i fix this so i do not need to reboot every time i want to see newly created images?

Sounds like a view issue on the folder itself, to be honest.