A cache-overriding reload isn't a fix-all, but it is the first thing I tell anyone to try ("Hold Shift and click the Refresh button") when they're having a problem with a web site.

Have a stubborn Web page that seemingly won't refresh? Try these tricks to force its hand. ... In Camino and Firefox, press Shift-Command-R (or hold Shift and click the Reload button).

If the RELOAD button doesn’t help, clear your browser cache and try loading the page again. Cache files sometimes are corrupted or include old files, which make your browser loads slowly.

Press the reload button until Safari displays the options for reloading the page. Both attempt to do what their names say, although the results may not be what you want: Many sites won’t show the ...

If your Mozilla Firefox web browser on your Windows PC is not running smoothly, you can use the Refresh Firefox feature to reset and restore your browser settings to the default value in Windows ...