I agree, like I said they can't win no matter what they do. {Valve}.
But honestly, what is the point of moaning about not having the tools to create CS Source maps when you don't own CS Source. I'm sorry if I sound a bit high and mighty, I'm a bit sick of reading about what people think...
Almost definately memory problem. DDR400 on 32bit AMD processor is notoriouly unstable, even though it says it takes it. Believe me, go into your BIOS and turn down memory speed to 333 (usually 83%) of full speed.
I've seen this odd behaviour many times.
NB - if you ever get error messages...
Theres a lotta HL2 votin goin on right now, amazing. Your fiingers must be knackered by now Wilka. ;)
I have to say I prefferred Horace Goes Skiing to Halo.