12.1. Common Problems12.1.1. Interface-Related Problems12.1.1.1. I'm trying to select items, but they won't select, and this funny circle keeps snapping to my mouse clicks.12.1.1.2. Can I select multiple items?12.1.1.3. Can I edit multiple selected items?12.1.1.4. What is the orange dot in the middle of my object?12.1.1.5. For some reason, I can move my objects but not rotate or scale them. I haven't put on rotation constraints or anything like that.12.1.1.6. Where did my window header go?12.1.1.7. The button or menu I'm looking for is missing.12.1.2. Viewport-Related Problems12.1.2.1. My objects disappeared.12.1.2.2. My model has gone all see-through.12.1.2.3. How do I easily move the view around to look at what I want?12.1.2.4. How do I line the camera up to where I want it?12.1.3. File Management Problems12.1.3.1. Where did my saved render actually go?12.1.3.2. Blender never told me my work wasn't saved when I closed it! How can I get it back?12.1.3.3. I've noticed there are .blend1 files in my project folders. What are they and can I delete them?12.1.3.4. How else can I recover work after a crash?12.1.3.5. Can I combine Blender files into one?12.1.4. Surface Texture Problems12.1.4.1. I have black lines/faces on my mesh.12.1.4.2. My UV textures aren't showing in 3D view.12.1.4.3. How do I get alpha (transparency) to work?12.1.5. Physics-Related Problems12.1.5.1. Why do my particles stop at frame 250?12.1.5.2. Can I Make a Self-Running Application with Blender?12.1.6. Migration Problems12.1.6.1. What happened to the old spacebar menu?12.1.6.2. How do I merge/split windows in the newer Blender versions?12.1.6.3. Can I open an old file without it spoiling my window layout?12.2. Resources12.2.1. Render Farms12.2.1.1. The BURP Project12.2.1.2. Loki Render12.2.2. Sound Editing12.2.3. Paint Programs12.2.3.1. GIMP12.2.3.2. MyPaint12.2.3.3. Alchemy12.2.3.4. Vector Drawing12.2.4. Camera Tracking12.2.5. BlenderArt Magazine12.2.6. Getting Blender12.2.6.1. Cutting-Edge Releases12.2.7. Community12.2.7.1. BlenderNation12.2.7.2. The BlenderArtists Forums12.2.7.3. Noob to Pro12.2.7.4. BlenderNewbies12.2.7.5. Blender Guru12.2.7.6. Blender Cookie12.2.8. Free Blender File Resources12.3. Summary