Art8boi: if its an important issue to you, you should challenge it. Nothing ever gets changed if no one is willing to challenge it. But be tactful. If I were you, and this issue was important to me, then instead of confronting the guy that made you get off the computer and gave you that written notice about the school's policy on pornography, go above his head. You did refer to him as "an employee" but you didn't say whether it was a professor, the dean, head of school or library, etc. So, I would go to who ever is in charge of the library and explain to them what you explained to us. Tell them what Poser is, what Renderosity is, and why/how you are trying to build a portfolio. Show them the Curious Labs, Daz3d and Renderosity websites if it helps. If you show them what you're doing, then they might not be so ready to accuse you of downloading porn. Hopefully you'll be lucky enough to talk to somebody with a fairly open mind about things like this, and who knows that there is a difference between pornography and nudity as art. Maybe you could even get your art instructor to hear your case first. And, if someone with the authority to make decisions there has a notion to side with you at least partially, maybe you could agree with them to allow you to continue your project on the computers durring off hours, when the library might not be so full of other "impressionable children" and close-minded instructors. And if that doesn't work, try the public library (if they don't charge you for use of the computers. Some do some dont).