ValentineRain

Hey there, OP! I was JUST having this exact issue, and I managed to fix it a few minutes ago. It turns out I did something stupid, so maybe try this to see if you have the same problem; Even after Force Updating for a fresh jar, the contents of your mod folder remain untouched. If there's anything in it, go ahead and take that stuff out before trying to launch again. I had a 1.4.2 version of MatMos and Chococraft in there and that's what was giving me the black screen. The issue might be that you're trying to get Forge to work before starting on your other mods. That's a good idea but if your other mods are still lurking around they're going to break it! Good luck!