Hi there! I'm new to the building websites and have come here for a little help if possible!

I have a little problem being that when someone clicks the 'Like' button on my website and posts the 'XXXX likes this page' message on their wall, the thumbnail that appears next to the post is the 'Get Adobe Flash Player' image. I'm assuming this is due to there being a flash object near the top of my page. Does anyone know of a way round this?

Thanks very much in advance!