I am have been trying for several hours now to get tekkit to launch. I have it on another computer of mine and it works fine. But on my main computer it keeps doing this.
I click the launch button for Tekkit.
The Launcher closes and minecraft starts up. Either before minecraft's windows even shows up or in the middle of when when I see the Mojang logo when Minecraft is launching, Minecraft closes and it shows me the launcher again.
I have tried deleteing the Tekkit and bringing down a fresh copy several time. I have on the latest version of Java and my windows updates are all up to day. Any Ideas?