Tomko Xu

What is more, other people in SL see me as transparent as well. If this is merely a viewer or machine issue, why would it propagate to other people's view of me?

I have been having similar troubles. I think it started when I used a second monitor on my mac. Macbook Pro AMD Radeon 6750M graphics card. My av's skin disappears. Disconnected 2nd monitor, and problem persists, even after cache clear, relog, etc. I've tracked it down to whenever I wear panties or bra, it makes that part of the skin transparent. The same clothing in shirt or pants does not affect the skin's appearance. I've used the Phoenix, and Firestorm latest viewers, and also SL's Viewer Second Life version 3.2.6.248086. The same behavior happens in all three viewers.