I'm working on a map but I encountered a problem.
The problem is that my particle_system doesn't work. When the particle_system is in the map and it's Start Active? is on Yes, the map doesn't open in portal. The map seems to load, but just before spawning, p0rtal crashes...

Anybody an idea?

Best regards and thanks in advance,
MWP

I named it (after your advice) p_s_1, thats not so long.. There aren't any spaces in the file name.
I'm trying to use: glados_spark_01_small.

I can't find the button to post attachment? How can i post the map?

EDIT: I got different particle systems working in a test map. But I need sparks! ^^

First of all, you should find the attachment button below the "Save Draft"/"Preview"/"Submit" buttons... There are 2 tabs: "Options" and "Upload attachment"

Here you have all Portal2 particle systems. From your description I'd suggesst you to try the ***cable_spark_6 *** particle system.

I have working sparks! I found the env_spark in the list you posted! So thank you again!
The cable spark had a green cable attached to the sparks.. Also, the env_spark makes a nice sparky sound.

I see the attachment section now.. That's nicely hidden there...

Thanks again!
Cheers,
MWP