K, I am in the middle of my project, and I have never had this problem before (final cut pro) and whenever I want to insert an extra clip into my project, it just over writes it, even when i try to use the insert option in the viewer window, never had such a stupid problem that was so simple, Theres probaly some hot key, or some icon. Does anyone know how to fix this?

When you drag the clip into the timeline, look at the line that runs horizontally through the track. If you're above the line, it inserts - below the line, it overwrites.

Thats what i thought the solution was in the first place, and I can see this line, in the timeline, in my clip, its the line that is kind of in the upper half of the clip, but even when I place it above the line, it still over writes, and even when i place it below, same thing happens, I even tried inseting it with the Yellow "insert option" in the main viewer windeo but it still over writes...no tracks or locked or anything! I duno what the problem is