Well like I said this happened to me. It doesn't seem to affect everyone but if it does here's how I fixed it.
Remember, this is only if your white market icon that appears in the upper right of the app drawer doesn't work. Just go to the "manage apps" tab under settings and uninstall updates to "google play store", then whenever you need to go to the market just make sure you use the white icon in the app drawer. Eventually you'll be prompted to accept the agreement again. Keep using that icon to access the market, then a little later it'll ask you again if you want to contine to the "play store" just click continue and accept the terms again and your app drawer link will work again.
There may be a straight up fix, but this was simple enough and doesnt affect you other than one extra click.