Yeah valve seems to be a specialist for causing hammer trouble.
The hammer can't shut down the valve... haha.
Well it seems like it was just a set of the concrete textures, other textures are normal. Sounds like a glitch to me.
The command failed. Windows reported the error: the system cannot find the file specified. Do you wan't to continue? or ERROR opening mapname.bspProblem, i have looked in the Log file to see what was going on, i saw some messy brushes, i delete them by ID. And now nothing changed.
This means that your level isn't being placed into the correct directory. This can be caused by either anincorrect configuration of Valve Hammer Editor or some majorly fatal error which has made it impossible to compile and/or play your map. Check your map for any errors/problems and check paths and directorys under your Hammer Options.
And for the objects , that use procecor for physic and stuff.No , that's not a question really. But yes , related to the optimization question.