google chrome does periodic updates and "patches" to their program. which means sometimes those already with chrome may need to either reboot their computer or delete the google chrome program and then redownload it again. when you delete the program it will ask you why you are deleting it and whether you are going to reinstall again. (another tip...if you click the delete and reinstall option you wont lose any of your bookmarks. the program will reinstall them automatically.) after you reinstall the program you should be able to see the smilies again. At least that's what fixes the problem for me.