do you know what causes this:
turning on r_fullbright removes the corrupted pixels.
i am using an unorthodox method of changing lightmaps for a lightning effect:
i create standard lights and manually assign 'style' to them (instead of letting light.exe do it) and then update lightmaps via qc by feeding in different single letter string settings via lightstyle() function.
this is the only non-standard thing going on in this map graphically, afaik.
textures are just standard 8bit palettized.
any ideas?