Having trouble uploading a file or image?
Upload Limits: You can upload an unlimited number of individual files of no more than 250 MB each (except for video, video can be up to 1 GB per file). Make sure the files you're uploading do not exceed the site limits.
Clear Your Cache: Clearing your browser cache is often a great fix for annoying little problems that come up. You need to clear the cache, close the browser, re-open the browser and then log back in to your account. If you're not sure how to clear your cache, see: http://www.wikihow.com/Clear-Your-Browser's-Cache
Try a Different Browser: Our service usually works perfectly with most flavors of Firefox, Safari, Chrome and Internet Explorer. But if clearing the cache doesn't help out, switching to any other browser than the one you're currently using may be the way to go.
If you're not sure which browser you're using now, take a look at Google's excellent whatbrowser.org. It'll tell you which browser you're using right now and even allow you to update it to the newest version (should there be a newer version than the one you're using).
Check Your Browser Extensions: Most browsers allow you to install third-party extensions that "add" functionality to the browser. Some extensions are useful. Many are not.