weird lightmap crash problem

I compile my map, and run it. However, the sky is a weird blue color
and is diffrent than the normal sky. When I shine my flashlight on the
sky, hl crashes and I get this problem:

Error: lightmap for texture SKY too large (54X48 = 2592 luxels); cannot exceed 324

here's what it looks like ingame:



Before it worked fine, but for some reason it doesn't like it now. I'm
guessing it is either a conflicting sky texture, (because I have 2 sky
textures, the origional hl one, and some other one from a wad that's a
diffrent color), or that I checked the SPARSE flag in my batch
compiler and compiled. What's the deal? can somebody shed some light on
this for me?

yep just as I thought. I deleted the new sky texture and recompiled. Bug free.

So why didn't you try that before posting?

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Blame it on Microsoft, God does.