Mysterious Custom Hatch Error

[ShadowVFX]

I'm trying to create a simple 2x4 ceiling grid hatch for layout planning, but AutoCAD keeps giving me an error when I try to use it.

Here's the custom hatch that I wrote at the very end of the acad.pat file:
*CGRID, 2x4 grid
0, 0,0, 0,48
90, 0,0, 0,24

When I load up ACAD, it shows the hatch in the selection, but after I've defined the area and I try to apply the hatch, I get this error in the command line:
Missing parameter on line 385.
?

I have no idea why it's not finding my custom hatch acceptable. Thoughts or suggestions?

[ReMark]

Now turn your attention to this article by Ralph Grabowski.

http://www.upfrontezine.com/tailor/tailor13.htm

[ShadowVFX]

I'm still looking for some help. I followed the tutorial on that link, but he does a pretty poor job at simplifying his explanation.

Here's what I wrote:

*CGRID, 2x4 grid
0, 0,0, 0,48
90, 0,0, 0,24

And here's his description:
angle, x-origin, y-origin, x-offset, y-offset

I don't see my error. I specify angle, then X origin, then Y origin, then X offset, then Y offset. I do the same for the second line. Are you required to specify gap space, even if you don't want any?

Edit: I've been trying to solve this issue, and I've coppied one of the existing patterns in acad.pat (AR-B816) and pasted it at the very botton of the list. I ONLY renamed it like this:

*CGRID, 2x4 Grid
0, 0,0, 0,8
90, 0,0, 8,8, 8,-8

It's still giving me the "error on line 384" error. So, I don't know what's wrong with it, because those numbers are copy+paste from the original AutoCAD hatch (which works fine).

[ReMark]

Have you tried it this way?

*GRID24x48, 24x48 Ceiling Grid
0, 0,0, 0,24
90, 0,0 0,48

Does your file name and pattern name match?

[ReMark]

A ready made hatch pattern for a ceiling grid you might be interested in can be found here.

http://cadtips.cadalyst.com/patterns/ceiling-grid

The guy who wrote it, Watson Kilbourne, is a master at this stuff.

[Blackfish]

Hi,
If you place the pattern at the end of acad.pat you probably have missed to press Enter at the very end. That's it!

[ShadowVFX]

Hi,
If you place the pattern at the end of acad.pat you probably have missed to press Enter at the very end. That's it!

That was it, thank you.

What a simple yet stupid thing to require to "make it work".