rich2005 wrote:
1000x1000 will be big brushes, 8 cells RGB and the brush files size here are 32 MB.
Are you a brush junkie? It could be that there are just too many brushes loaded into memory. Remove some and try again.
Creating a brush? Does not need separate layers, a strip works as well, just set the correct cell size, or if happier with layers use layers.
Thanks! This information is helpful! In my installation of gimp, 1000 x 1000 is fine for simple, non animated brushes, but when used for the dimensions of animated brushes it crashes gimp. I found that 300 x 300 is perfect!
No, I'm not a brush junkie. I do have a lot of brushes, but I haven't had any problems with gimp having trouble loading them all. I really just prefer to create everything from scratch, instead of using other's resources... It makes it so much more exhilarating!
Being a corel paintshop pro user, I'm used to creating picture tubes on a single layer. They work pretty much the same way as gimp animated brushes. However, I really prefer using separate layers because it simplifies my work load as I can flip or rotate them separately.

Thanks so much everyone!!! You guys have really helped me out! And in such a quick time frame! The problem was the dimensions of my brush. I just didn't downsize it enough when I tried it the first time!
For anyone who is interested, I have included an image attachment of an example of the kind of effect I was trying to achieve. It's a bit rough as I haven't polished my dynamics setting fully yet. But I'm already loving the way it works!