I've noticed the materials library getting flakier and flakier. My settings are almost ALWAYS

lost.  IE I choose a material.. set it up accordingly (values, etc) and SAVE.  If I go back into

the library to make a change, all of my settings are gone and (usually) it reverts to Alloy Steel.

Its quite frustrating when setting up a complex material model with a lot of data.  The "save to file"

works, but after that, there's no way to pull the file back in.

Has anyone experienced this?  Are there any fixes / work around?  I'm on 2010 sp4.0

Thanks.