I went to KDE menu->System->configuration->KDE->Components->File Associations
but its not remembering custom file types.

For example mpg already exists as a file type, an it will remember my prefence of which application i prefer to use (out a of a list of ones registered)

but for a file type, such as .doc .DOC , or .rm, or .ram, it wont remember which program it needs to use to open them, and when i click on a file, the "what program do you want to use" box will come up

is there somethign im doing wrong, or is this a bug, or perhaps theres another way to register file types?