Optoma projector. We are having problems with our projector. The screen (or light bulb) flickers.

Question

We are having problems with our projector. The screen (or light bulb) flickers. We have had it just a little over a year and first the colors got funky so we replaced the bulb. Now when we try to watch it(we use ours as a television), the screen flickers. Not quite sure what all to try. We have tried the resync button and that does not fix it. Any suggestions would be great!!