I saw this question (Q1) come up and get closed fairly quickly as it should have been, but it was linked to this question (Q2) which had also been closed as a duplicate to this third question (Q3)
Q1: I can't build or destroy anything in minecraft!
Q2: Why can't I destroy or place blocks?
Q3: Why are blocks respawning in my Minecraft 1.3 SMP server?
Question 2 might appear to be a duplicate to somebody that is not familiar with Minecraft, but they are very different questions and have very different answers. Thus Question 2 should be re-opened.
