Problem with transparency

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http://chakra-project.org – Hi to all,I'm new to Chakra.I'm ok with everything except this: as I like transparency for windows, I installed the oxygen-transparent and the Qtcurve themes, but neither of them works, although I modify the level of opacity. They appear as normal themes, without transparency.What's the reason in your opinion?I have nvidia drivers installed.Thank you in advance for answering. (HowTos)