Have you noticed that your Instant Preview for your site in google search results doesn't look like your site at all. Well we have found the answer! Just login (or signup if needed) for google webmaster tools. Once there click the site in question and click labs on the left navigation. From there you will be able to preview the different pages on your site, to see what your instant preview looks like. From there it will let you know any warning or errors that caused the image to not match up to your site. We've found that most of the time this has to do with your robots.txt file blocking the google bot from accessing certain resources on your site, such as a css or images folder. Trick is it will take some time for these changes to come into effect, but it's a step in the right direction!
Hope you found this article helpful!