proplems loading mods

[ChoclatePancake]

every time i install a mod on my server it doesn't work. like i'll open up steam launch the dedicated server and the normal first part will come up heres a pic
  wtf.bmp (Size: 495.03 KB / Downloads: 14)
and when i click start it just goes blank (the menu disapears and brings me back to steam) so what do i do? (btw I've tried just about every mod out there..)

[ChoclatePancake]

can some one please help i wanna get this working by today (my friends never seen a zombie server and i wanna show him one)

[fqdn]

you should probably download srcds rather than use the gui one from steam. at least then if it gives an error you'll see it.

[Mooga]

Most of us around here (if not all) use srcds (not steam) and withOUT the GUI.
Once you get used to it, it's MUCH better then the GUI.