Mcafee incorrectly identified several of directv2pc's codecs as containing a trojan horse. I found that out when I removed and reinstalled the directv2pc software and mcafee popped up and reported the quarantine.
I removed mcafee, reinstalled the direcvtv2pc software, and installed microsofts security essentials instead of mcafee. Besides being free, it had no incorrect problems with directv2pc.
Cool. Besides the problem I had with antivirus, sometimes installing other cyberlink products like powerdvd after you've installed directv2pc can cause some issues.
Which if thats the case, the next time you run powerdvd or whatever other cyberlink product that uses different versions of the same codec that directv uses in their product, it might stop working again but again a reboot will fix it.