XPM Orphaned blocks

Hello All,

In the past week I have mined three orphaned primecoin blocks. After being one of the early primecoin miners (day 2) I came back to mining primecoin after the recent spike in price using my desktop CPU. This is when I mined the three orphaned blocks spaced a couple days apart each. When I was mining before I hadn't had any orphaned blocks. I know that mining an occasional orphaned block is just the cost of doing business as a solo miner but because I got three in a row I am thinking I am doing something wrong. I have temporarily halted primecoin mining but I intend to start mining again in a few hours. I am also thinking the because I am mining solo on a stand alone CPU some mining pools, bot nets, or cloud mining setups are conspiring to ignore my and other small miners' blocks but that could just be a delusion.