Problems With My Nikon D90 Flash?

I can't get my D90 built in flash to stay closed. Is there a quick solution?

More info would be great. But are you saying it keeps popping up when you press the shutter release, or that in general it will not stay latched?

If it is the first one and keeps popping up when you press the shutter release button it is because you are using auto, switch to a manual setting a, s, p, m and it should stay down.

If it is the second and just will not latch, then a small piece of electrical tape would be a short term cure.