Champion Select opening changed my screen resolution.

All I did was click to accept the ready check and my resolution changed to 640x480 and I couldn't ban a champion since the "Ban" button was offscreen. It forced me to dodge while I was searching my settings to change my resolution. I also noticed there is no option in my settings that go that low the lowest option is https://i.gyazo.com/5c1d5e5a7e743fd9127ac1f14024ebea.png I took a screenshot before I changed my resolution just so you can see the pain I felt. https://i.gyazo.com/030a6b71b6f21c07e0bff853c68180fc.png That took up my entire monitor.