[philadelphia killing mach]

there have been times while mapping where i'll create a brush, texture it and then move onto another part of the map. before i close radiant, i'll double check what i've added durring that mapping session and yep, the brushes and textures are there. i'll compile and then test the .bsp in maps/dm and more times than not, where there should have been a textured brush, there's now only empty "see through" space. the texture is still there (you can bounce a 'nade off of it/not walk through it) but it looks like an empty space with the textured brushs around it visible through it. most of the time if i just start over and replace it, it'll fix the problem but sometimes it takes 3 or 4 replacements and compiles for it to finally show up in the .bsp. anyone else have this problem ?

also, near one of my buildings i have a very thin gray line that kinda looks like a splinpath that i know i didn't put in there. it shows up in the camera view as a white line and in the top and side views as the gray line. even if i switch the grid to 1, i can't "select" it. anyone else have this problem ?