I have encounter a problem upgrading from 9.2 to
10.0. My mandrake control center has gone missing!
I click on the desktop; it will ask me for the
password, load it up and then for some reason
disappear. I can get drakconf from the terminal,
and have tried update-menus-v. This is problem
number one, problem number two (these may be
related), every time I use a terminal this message
is always displayed:

locale: cannot set LC_MESSAGES to default locale:
Invalid argument

An identical message will also appear, but with
LC_ALL.

Whenever I load up software from the terminal I
will get a list of LC_ . Just before the software
loads up a line appears with something about perl
and using C. Please help.

I was impressed with Mdk 10 for a while, until I really started looking it over. Though it is miles ahead of 9.1 and 9.2, still it's just not as refined as 9.0 was when it came out..in my opinion of course.
I ran into similar little problems with Mdk 10 and decided Fedora Core two was far more refined and finished, though it has a few problems of it's own. I would just call up the utilities with drakconf from a terminal until an update squares the problem away. You might want to try running the menu configuration utility and see if maybe there's something screwy there.

I'm not really sure what those errors mean. If it's not a problem for you, you could also just do a re-install. That's one good thing about Mandrake: Their install is as easy and smooth as it comes in the Linux world, and even easier than Windows for that matter.

Did you pick and choose what you wanted installed?
Those error messages indicate that the default location
for LC_MESSAGES doesn't exist.
I don't have MDK10 installed right now so I can't find it
for you.If u can find the default path ,it can be changed
to another directory or you can create the default directory.