* »Q« (boxcars@gmx.net) [14.07.08 01:16]:
> A few days ago, I used eselect to switch profiles, from
> default-linux/x86/2007.0/desktop to default/linux/x86/2008.0/desktop.  
> 

As I did...

> A lot of USE flags were removed from my make.conf, including
> the cpu-optimizations such as sse and mmx.  After re-compiling a few
> things and getting warnings from the ebuilds that video and audio 
> playback would be choppy without those flags, I put them back into my
> flags in make.conf.  If I use ufed to manage the flags, as I'm used to
> doing, it takes them back out when I save changes.
> 

ufed is the bad guy, I think the stable version is not able to handle 
the new profile layout correctly.

> It seems strange to me that the profile switch should affect these
> flags.  I think I'm overlooking/misunderstanding something, but I'm
> not sure what to ask.  Any enlightenment (including links to
> enlightenment) would be appreciated.
> 

Use ufed-0.40-r10 from ~ and your use flags are not getting removed.

HTH
Sebastian

-- 
 " Religion ist das Opium des Volkes. "      Karl Marx

 SEB@STI@N GÜNTHER         mailto:samson@guenther-roetgen.de