Pop unders/child windows

I am updating our website. So, in VS I open each image in my website, then I copy it to do a new screenshot in our updated UI. Then I save it from photoshop. Here's where the problem starts. VS opens a window telling me the image has been updated. I need to close this before VS becomes responsive again. Only, it's not a child window of the IDE, so I have to ALT-TAB looking for it every time, so I can close it. I know I've had other issues with popunder windows like this making other MS programs seem to freeze up. Is it that hard to set the owner of a window before you show it ? I don't know. I know it's frustrating to have to do over and over, because some basic UI rules were ignored.