Mesh appears normal in solid mode but looks weird in textured mode I have Blender 2.49b and have this model:



When I change mode to Textured, the windows look weird:



When I go back to solid mode, it's normal, but the biggest problem is when I export the model, it looks like the image above. How can I fix this?
The most likely cause would be the normals, that is which way the polygon is facing, the outer side is the one that has the texture drawn on it. In edit mode select all and press CtrlN. If that makes it worse try CtrlShiftN to flip them the other way.

Worst case scenario you can select individual faces and flip the normals using Mesh->Normals->Flip (Flip normals is also available in the specials menu W)