This is interesting. I wasn't sure myself when I found a problem very recently on a product. I was wondering if a product had been tested here using P5, not mentioning which product it was. The answer was that unless the product specificly says it's for P5, it may not be tested in it. This caused a problem in that the mesh would render just fine in P4, but in P5 a part of the geometry wouldn't take the texture, but came out black. There was also a minor morphing problem. One of the moderators asked me privatly for the product and the MP link. I gave it to him, and also emailed the vendor. It was forwarded to the tester to take another look. The vendor emailed me back asking for a detailed description of the problem, which I sent. The product is still on sale. I'm waiting to hear back from the vendor (not mad yet, it IS the holidays). However, I do expect some sort of resolution within the next week or so. It's the first time I've ever been even mildly unhappy with a product. The funny thing is I've seen renders with the new product, and in all of them, the part of the geometry is off color. Was I the only one to notice? I think the plan of attack should always be to email the vendor, and if the problem is a basic flaw, to let the MP manager know for a review, so that if there is a real problem it can be pulled until fixed. Then if you don't get satisfaction in a week, go public in a nice way. This will let people be warned and increase pressure. Going any further is pretty useless. Just write it off and never buy from them again.