Iit seems as though the latest amd display drivers don't play well with tekkit servers. I installed amd's 11.5 display driver (they're up to 12.4 now) and it works just fine. I guess amd doesn't want us playing mc?
I first noticed it with the teleport pipes in my house, had my buddy take them down and then I was able to load it up again. After that, it was kinda buggy and random when the error would come about. I normally can do single player just fine.
Launcher/pack Version: 0.5.4.9
Operating System: Win7 64 bit Ultimate
Version of Java: 1.7 64 bit
Description of Problem: I get a display driver not responding message from windows when approaching my house.
Error Messages: Display driver has stopped responding and has recovered.
Link to pastebin of log: http://pastebin.com/x4eYusaY
I have HD6870's in crossfire, and I updated all my display drivers.
I'm also having the same problem. Updated my display drivers, reinstalled java and cleared the mod cache. I even reformatted my computer. I have 8gb of ram allocated to the game. Still, I connect to a server and it tries to load the environment but it still freezes then crashes.