Can't edit vbulletin.css Internal Server Error

[michiganbaja]

I can edit any css file except vbulletin.css. Once I click save it goes to the 500 Internal Server Error page.

Any suggestions? Thank you.

[ENF]

What method are you using to actually edit the CSS file?

[michiganbaja]

Style editor in admincp.

[Andy]

Are you using CSS Stylesheets as Files?

Admin CP -> Settings -> Options -> Style & Language Settings -> Store CSS Stylesheets as Files?

[Lynne]

Try this... maintenance > diagnostics > problematic web modules... anything show up there? Also, please take a look at your error_logs (if you don't knwo where they are, ask your host) and see if anything is in there.

[michiganbaja]

I'm not using them as files. Should I?

Diagnostics came back "no" for Suhosin and mod_security so all appears good there.

[Andy]

I'm not using them as files. Should I?

No it's fine the way it is.

[Lynne]

How about your error_logs?

[UGS]

Are you using CSS Stylesheets as Files?

Admin CP -> Settings -> Options -> Style & Language Settings -> Store CSS Stylesheets as Files?

Holy crap. You can do that?