Map materials not sending

[SatanTheSith]

I run a server on my desktop computer and I like to use custom maps like poolday, but when users who dont have the map download from server, everything is purple and black. Does anyone know how to fix this?

[Muppet]

Alt-tab out, alt-tab in or reconnect - this normally happens to me after i download a new map. But with maps now being restricted with pure, map-makers should really add the materials and decals into the actual .bsp.

If alt-tabbing/reconnecting doesn't work and the materials weren't download on connect, then its possible the server is actually missing the file needed.