I'd finally been getting somewhere with daylit interiors in Vue when this awful glitch showed up. If the camera is placed within an imported .obj or .3DS model looking outward the sky turns bright blue without any clouds. This occurs even (in fact ONLY) when there is no glass in the opening. The only way I've found to solve/workaround the problem is to add a sheet of bubble glass with no reflectivity into the opening- then the sky displays properly! This problem even occurs in an imported model with no roof e.g. a walled garden. I've tried everything I can think of- I thought a stray face may have been generated when I exported from SketchUp (Nope), disabling OpenGL, welding/splitting imported models, different atmospheres. The only clue to what is causing this is that inserting an invisible glass face into the opening fixes it, but I don't fancy having to model "glass cases" around my models so that skys appear correctly. I would be very very grateful for any help or advice. Jackson XP 3.2 GHz Intel Pentium 4 1.28 Gb RAM NVIDIA GeForce FX Go5700