libpng error: incorrect data check

boogywoogy · Post by **boogywoogy** » January 7th, 2008, 3:45 pm

I've been playing quite a bit of this game (~26 hours so far!), and it's really great. I really appreciate the availability of a quality game for Linux, so thanks!

I'm having a problem, however, that doesn't seem to be addressed in the forum so far. Whenever I enter some map areas, the game crashes back with the following error:

libpng error: incorrect data check

I'm seeing it when I try to enter the screen that I think has the city of Vela on it (i.e. north of Blackwater, west of "Baron's Thicket", etc). It also happens somewhere in the goblin crakamir place, but I don't recall precisely where, and it gives the identical error message, so I think it's probably the same thing. It doesn't matter which side I try to enter from, so far as I can tell, and it has never worked - I've never seen that map area. Any idea as to what's going on? It seems that I'm very much unable to continue with the game and its story without those areas! :)

Any help is greatly appreciated.

I'm running this on a box running Ubuntu 7.10 with the 2.6.22-14-generic kernel, and the version of libpng I have installed is the one that comes from the 1.2.15~beta5-2ubuntu0.1 package.

Please let me know if there's any other system information or something that I can post that would be useful in tracking down this issue.

Thanks very much.

acoustibop · Post by **acoustibop** » January 7th, 2008, 4:37 pm

Same version that I have installed, boogywoogy; I have no such problems. Try reinstalling libpng?

What sort of system are you running on? I presume you're running Gutsy?

Edit: yes, that's the map with Vela.

boogywoogy · Post by **boogywoogy** » January 7th, 2008, 4:42 pm

Yeah, I'm running Gutsy, Ubuntu v.7.10. I've got an Athlon 2600 with 1 GB of RAM and an nForce2 mobo. I've got a GeForce 6600 GT video card.

I tried reinstalling the libpng package, but it didn't fix the problem. Thanks for your suggestions - keep the help coming!

acoustibop · Post by **acoustibop** » January 7th, 2008, 5:26 pm

No ideas then, boogywoogy. My system is roughly comparable to yours - bit faster CPU; ATI 9700 Pro instead of your GeForce, VIA based mobo - but similar.

What driver are you using for your videocard?

micks · Post by **micks** » January 7th, 2008, 9:39 pm

It sounds to me like the game data might be damaged on your drive, namely the maps that libpng is trying to read. You might want to try and re-extract the game archive (or re-download it, I was able to download my copy twice, not sure whether it's not actually time-limited, though).

boogywoogy · Post by **boogywoogy** » January 7th, 2008, 11:55 pm

The problem somehow seems to have resolved itself... The only thing that I can figure is that maybe the png re-install fixed it, but that for some reason it didn't immediately pick up the change? I don't know. In any case, it works now. I'd recommend re-installing the libpng library for anyone else that has the same issue.

Thanks for all your help!

acoustibop · Post by **acoustibop** » January 8th, 2008, 1:06 pm

Good to see the problem appears fixed, boogywoogy. Maybe x needed restarting or a reboot was needed?