I have lost 3 center caps off of my right front wheel. They are not just falling off, they are breaking apart. I noticed this morning that another one was gone, but there were pieces still left in the wheel. And it's not the same wheel as I have rotated the tires. But, it is always the right front. These are the Sedan 17" 5-spoke sport wheels. Anybody else having this problem?

'04 G35s 6MT Diamond Graphite/Graphite