DarkDemonDragon

WOOT! It worked Thanks a lot for your help

Check the development console. At first I wasn't sure what was going on, but then i saw that it crashes kinda while trying to start with Forge, which makes it disappear for a sec then reappear.

This has also been happening to me D: I tried removing the mods and I've redownloaded Forge both recommended and latest (before I usually used latest). This happened after I tried to get Rei's Minimap, so maybe I did something wrong, but I'm not sure why my Minecraft launcher just kinda blinks when I press play. I get this in the development console: [19:43:13 INFO]: Client> [19:43:13] [main/ERROR] [FML]: There is a binary discrepency between the expected input class bah (bah) and the actual class. Checksum on disk is 2db9307, in patch afcc0c32. Things are probably about to go very wrong. Did you put something into the jar file? [19:43:13 INFO]: Client> [19:43:13] [main/ERROR] [FML]: The game is going to exit, because this is a critical error, and it is very improbable that the modded game will work, please obtain clean jar files. [19:43:13 ERROR]: Game ended with bad state (exit code 1) [19:43:13 INFO]: Deleting C:\Users\Anthony Chen_2\AppData\Roaming\.minecraft\versions\1.7.2-Forge10.12.1.1063\1.7.2-Forge10.12.1.1063-natives-5761891001923 [19:43:13 INFO]: Ignoring visibility rule and showing launcher due to a game crash I was gonna make a post myself, but I kept reading the rules and EAQ, and kept getting paranoid I'd be banned