well, I have a problem with my HTC Desire Z. Yesterday I removed a camera glass because of weak quality of made photos. Well I removed it and then my memory card wasn't visible for my phone. I tried to make an access to the PC by USB but it's not visible device. I found this under cover of my HTC. Today I was at the phone service and the man told me that it didn't cause this problem. Yesterday I tried to put another memory card to the access point in my HTC, but it still hasn't been visible. Memory card from this phone is working right in other phones, so it's a problem of my phone.