Corrupt Server Worlds

[verktyg55]

Launcher Version: Technic Launcher 1.0.1.3

Operating System: Windows 7 64bit Service Pack 1

Java Version: Java 6 Update 33 64bit & 32bit

Antivirus Program: Microsoft Security Essentials

Description of Problem:

A couple of weeks ago, Tekkit worked fine, and I played a lot on my friends' server, but suddenly it started crashing. I couldn't find a good solution at first, but then we found out that it worked with a brand new world, so we restarted, and we thought that the problem was gone for good, but we were wrong. Suddenly, it started again. Almost instantly when I joined the server again, my game froze, the pixels got low-rez scrambled, and I got a blackscreen. I can't find any solution anywhere, and some tips and help would be nice.

Error Messages:

None, the game just freezes, the pixels get scrambled, and I get blackscreen. Sometimes, I get a note saying that my AMD drivers has been successfully restored, but I don't think that my graphics cards (dual ATI Radeon HD 4870) is the problem, since regular Minecraft multiplayer works, and the Tekkit multiplayer. I DO play with a 128x128 texturepack, but I get a good amount of FPS and I play with a maximum heat of about 41-45 C°, and with about 30-45 C° on my Intel Core Duo 2 8400 3.0ghz @ 3.0ghz.

Error Log:

[11:57:00] [sEVERE]	------------------------------------------

[11:57:00] [sEVERE]	Launcher is starting....

[11:57:00] [sEVERE]	Launcher Build: '1.0.1.3'

[11:57:00] [sEVERE]	Allocated 2730.6875 Mb of RAM

[11:57:00] [sEVERE]	Java VM: '1.6.0_33-b03'

[11:57:00] [sEVERE]	OS Version: '6.1'

[11:57:00] [sEVERE]	Is 64-bit: 'true'

[11:57:01] [sEVERE]	[info] Downloading 'mirrors.yml' from 'http://mirror.technicpack.net/Technic/mirrors.yml'.

[11:57:02] [sEVERE]	Starting download of 'http://206.217.207.1/Technic/CHECKSUM.md5', with 3 trie(s) remaining

[11:57:03] [sEVERE]	Copying: \temp\file8937184990956201629.tmp to: \launcher\CHECKSUM.md5

[11:57:03] [sEVERE]	File Downloaded: \launcher\CHECKSUM.md5

[11:57:04] [sEVERE]	[MD5 Mismatch] File '\launcher\tekkit\modpack.yml' has md5 of 'd0b3f3ca2e9a945d14b8fc219c0ed406' instead of '6d0cae11845255390e463c81877706af'

[11:57:04] [sEVERE]	[info] Downloading 'modpack.yml' from 'http://206.217.207.1/Technic/tekkit/modpack.yml'.

[11:57:06] [sEVERE]	[info] Downloading 'minecraft.yml' from 'http://206.217.207.1/Technic/minecraft.yml'.

[Torezu]

Update to 64-bit Java 7, and get rid of all the old versions you have. Then post the whole launcher log. Use pastebin if it's too long for code tags.

[verktyg55]

Whoops, don't mind this post, I'm not used to writing replies on threads, and I don't know how to delete it :P

[verktyg55]

Update to 64-bit Java 7, and get rid of all the old versions you have. Then post the whole launcher log. Use pastebin if it's too long for code tags.

Thanks for the help, it worked for a while, but I got a new problem, suddenly it started crashing again for some reason, and it's not my visual drivers anymore. Almost immediately when I join, the game freezes and I get blackscreen. I've tried to re-install Java and Tekkit again, but it didn't help. And yes, I un-installed all my Javas, and I'm only using the latest Java 7 64bit. Here's my log:http://pastebin.com/9jEGLnMr

[Torezu]

Try deleting your .minecraft folder. Make backups of whatever you want to save, of course. NullPointerExceptions are hard to pin down.

[verktyg55]

Try deleting your .minecraft folder. Make backups of whatever you want to save, of course. NullPointerExceptions are hard to pin down.

I managed to solve the problem, it seems to be one of my graphics cards, I turned off my AMD Crossfire and it started to work.

Thanks for your help anyways :)