A couple of questions. Did you test the truss rod before you put it in the slot? Was the truss rod able to turn after you glued the fretboard on? You really need to make sure the truss rod works along each stage of building the neck.
Regardless of how you attached the fretboard, when you put the frets in or what glue you used, you still need the truss rod to work, otherwise there's no point in putting one in.
So, try cranking the truss rod and see what happens. It really shouldn't take much force to move the rod, but if you've got some glue (like you mention CA on the ends) on the threads it will take some force to break the hold of the glue.
If this doesn't work, there are two things you can do. First would be to apply pressure at the middle of the neck while clamping at the ends to induce some relief, also a good idea to do this under a heat lamp, which can help soften the glue (just a little bit) till the neck is straight. Log onto the MIMF to take a look at this thread with a good sketch
http://www.mimf.com/library/neck_straightening3.htmNext would be to pull the fretboard off, remove the spline and replace the truss rod. Glue the spline back on and then the fretboard.
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