I have purchase lightroom 5 in 20014 from ebay. weeks late purchased training CD. after use training CD, there are pop out purchase advertise. since we already purchased copy right CD. no need to buy again. we delete pop out, then there are error message, I finally uninstall lightroom 5. now I have problem to re-install lightroom 5 again. also training lightroom CD not working at all. please help. Thanks.