Right Click & Drop Down Menus Freezing In Libraries?

This started a couple of weeks ago and it's driving me nuts. If I click the folder icon on the taskbar on my desktop, The libraries window opens fine, then if I click on documents or pictures, etc, that opens fine/quickly. BUT once the folder is open, if I right click on any of the pictures to get the menu for opening/sending the pic somewhere, etc, the little blue delay circle pops up for up to a minute. If I try to cancel it, it shuts the whole library page down, if I wait for a minute or two the menu will finally pop up and allow me to make a selection. The same thing happens over on the left side if I try to click the little arrows for the drop downs under the main folder headings, it takes forever and if I try to cancel it shuts it down. Same thing happens when I try to search for documents.