sorry this is a newb question, I just started with Hammer and still have some problems with basic stuff :
I use ZHLT Complie GUI to compile my CS maps, and it reported some bugs, it notices me "use Alt+P" to find errors.
ok I use Alt+P, fix dozens of vertex manipulations errors, the Alt+P error board is empty, I process my map again with ZHLT thingy, that reports after 1 second about 9879465456 coplanar textures problems ...
eh ? ...