@Jennkryst
Firefox: Cick on the triple horizontal lines in the upper righthand corner of the browser, then click Options, click on the Advanced Tab on the lefthand side, under Cached Web Content header click the button on the right that says Clear Now. Then refresh MSB.
Google Chrome: Click the triple horizontal lines in the upper righthand corner. Click on settings. Click on Advanced Settings at the bottom of the page. Under the Privacy heading, click Clear Browsing Data.
Internet Explorer: Click on the gear (Tools) in the upperrighthand corner of the browser. Click Internet Options. And here's where I'm unsure. I -believe- n the General tab, you may just need to delete your Browsing history. Then refresh MSB. If that doesn't work, there's one other thing you can try. On the Content tab, there's an AutoComplete header, you may need to click the Settings and clear that out. After that, I'm not sure what else to suggest. I tend to not use IE, I really dislike it personally, but one of those SHOULD work.
After you've cleared the cache and refreshed MSB, click on your profile pic in the upper righthand corner of the MSB page. Click on your name. Click on Settings. Then pick the skin you like from the dropdown box. You can preview all of them by clicking on them. Go through til you find one you like. Hit Save Changes down at the bottom of the page.