The funny thing is, sometimes it displays white correctly when I'm watching a video, but when everything on the TV is completely white, I have slightly yellow LEDs on the left and bottom. I didn't have these problems last year when I first set everything up.
I'm going to try replacing my corner connectors with brand new ones, because I've noticed that when I press and move them, the LEDs on the left get brighter. If that doesn't fix the problem, I'll post an update here.
Thank you pclin and i thank everyone who helped me.