O2 PROBLEMS AND ERROR MESSAGES
My texture wont load in o2 and i get an errormessage saying it wont load
Make sure the texture you are loading are either in PAA, PAC, 24bit TGA or 8-bit GIF file. All textures must have sides the "power of two", meaning like 64x128 or 512x256 or 1024x1024 (measured in pixels). Numbers from 8,16,32,64,128,256,512,1042 and 2048 are supported as a valid side size.

My texture wont load in o2 and i get NO errormessage, just says "NULL"
This is a rather tricky one and can be either because the texture you are trying to load is not accepted by o2 (see valid formats above), or o2 is not installed properly. One possible solution might be to reroute the DLL folder path under o2 options window. If you followed my getting started tutorial, you have set this value to "Z:\o2". Some people had trouble with this not working, and replacing that "virtual" path with the real path, which is C:\ofpedit\o2\ helped them get past the "NULL" texture loaded problem.

Where do i place my textures?
All custom textures should be in the current project folder, meaing if you are making, say a tank, you would make a folder named "mytank" on your Z:\ drive, and place its p3d, configfile and all textures in that folder (Z:\mytank\). If you load a texture from another location than Z:\mytank\ you will have to 1), copy the texture to the folder at a latertime, 2), update the texture path in o2 (see lesson 1). Failing to do this will end up with missing textures once ingame.

I get strange errors like "Missing worlds" etc when I try to start buldozer.
Most likely you have either messed up the settings showed in the Getting Started tutorial, or you didnt extract Buldozer properly! Make sure that when you extract the files from buldozer.zip you DONT select any files and drag them out, but instead make sure NO files are selected and hit the extract button. This is because WinZip dont display the FOLDERS in the zipfile on the filelist and selecting just the files will not extract any folders!

o2 crashes when i hit "Load Texture"
o2 is a buggy program and sometimes it messes up texture loading. This can happen anytime, even if you have had textures working flawlessly before one day it might start crashing without notice. This has been a hard bug to trace, but I have finally found a solution to the problem.

One person on the forums suggesting clearing any associated registry entries (HKEY_CURRENT_USER\Software\BohemiaInteractive Studio\Objektiv2Light), and this worked wonders. This involves editing the windows registry and can be a bit scary. Go to start->Run and enter "regedit" in the edit box. Use regedits leftside menu tree to find the path displayed above. When you find the foldernode "Objektiv2Light", delete it (its a good idea to back up the registry first, do that on the filemenu). This will clear any registry entries that might have gone mad during use, and o2 should work now. Note that all o2 settings have been wiped out and you will need to set them up again (see getting started tutorial).

ADDON AND CONFIG PROBLEMS
My weapons muzzleflash display ingame even though the gun isnt firing, like its always there
The famost muzzle-flash-bug usually orruces when the weapon class name in CfgModels class is different from the addons p3d and/or foldername. Try changing one of them to match the other and the problem usually goes away.

I can walk strait though my whole addon or parts of my addon, even though I made a Geometry LOD
This is a very common newbie issue and it usually related to one or more of these factors:

• You forgot to add the ComponentXX labels to all or some of the structures in the LOD. All parts must have such a label on them or else they will be left out.
• You forgot to add mass (or wheight) to all or some of the parts
• The structure(s) have missing faces and are not "sealed". All structures must be closed so they are completely solid, or you might get problems getting Geometry LOD to work properly

All this was discussed in Lesson 1 and you can look there for instructions on how to do the above things.