Heads up display not working.

[Ju5t1nwashere]

Hey everyone.
So for the past week I've noticed my dashboard and heads up display takes about 15mins to turn on. The turn signals work I'm not sure what else, but the digital tachometer, mileage, RPMs, the clock wont light up and the heads up display. I saw this http://www.nicoclub.com/archives/how-to ... h-hud.html here and was wondering if that would fix it. It's also been a bit colder lately in southern california too if that has anything to do with it.