I changed from an old, broken server to a new one and moved all sites (using ispcfg 3) to the new server. everythign went smooth except for one domain. this one domain is a co.za domain, registered via marcaria.com and using their DNS. I only provide the website content. after this move I asked the owner to change his DNS to point to the new server. the result is that now his A-records point to the old and the new server, giving you a 50% chance of landing on the right server. here are two tests: http://dnssy.com/lookup.php?q=jadeyoga.co.za&t=A shows two IPs for the a-record and http://dnssy.com/report.php?q=jadeyoga.co.za shows several DNS issues. I asked the client to chat with the co.za registry but they sent him to me, same goes for marcaria.com whose DNS servers he is using. since I don't provide anything else than hosting for him, I am not sure how I can fix this and where this problem could originate on my server. any advice?