This is the error i get when i do a yum update---Options Error: Error parsing 'gpgcheck': invalid boolean value

usage: yum [options] < update | install | info | remove | list |
clean | provides | search | check-update | groupinstall |
groupupdate | grouplist | groupinfo | groupremove |
makecache | localinstall | erase | upgrade | whatprovides |
localupdate | resolvedep | shell | deplist >

options:
-h, --help show this help message and exit
-t, --tolerant be tolerant of errors
-C run entirely from cache, don't update cache
-c [config file] config file location
-R [minutes] maximum command wait time
-d [debug level] debugging output level
-e [error level] error output level
-y answer yes for all questions
--version show Yum version and exit
--installroot=[path] set install root
--enablerepo=[repo] enable one or more repositories (wildcards allowed)
--disablerepo=[repo] disable one or more repositories (wildcards allowed)
--exclude=[package] exclude package(s) by name or glob
--obsoletes enable obsoletes processing during updates
--noplugins disable Yum plugins
What does this mean? How do i fix it?

probably one of your repo files has a typo....

that will spit out a list of files, after each file the gpgcheck result...

you should only have either:
gpgcheck=0
or
gpgcheck=1

Anything else is an invalid boolean value
if you find one that is something other than 0 or 1 you can just fix it by hand with your favourite editor as root and save.

I followed your advice showing----/etc/yum.repos.d/dries.repo:gpgcheck=1dries]
/etc/yum.repos.d/dries.repo~:gpgcheck=1dries]
/etc/yum.repos.d/dries.repo~:gpgcheck=1
/etc/yum.repos.d/fedora-core.repo:gpgcheck=1
/etc/yum.repos.d/fedora-core.repo:gpgcheck=1
/etc/yum.repos.d/fedora-core.repo:gpgcheck=1
/etc/yum.repos.d/fedora-development.repo:gpgcheck=0
/etc/yum.repos.d/fedora-development.repo:gpgcheck=0
/etc/yum.repos.d/fedora-development.repo:gpgcheck=0
/etc/yum.repos.d/fedora-extras-development.repo:gpgcheck=1
/etc/yum.repos.d/fedora-extras-development.repo:gpgcheck=1
/etc/yum.repos.d/fedora-extras-development.repo:gpgcheck=1
/etc/yum.repos.d/fedora-extras.repo:gpgcheck=1
/etc/yum.repos.d/fedora-extras.repo:gpgcheck=1
/etc/yum.repos.d/fedora-extras.repo:gpgcheck=1
/etc/yum.repos.d/fedora-legacy.repo:gpgcheck=1
/etc/yum.repos.d/fedora-legacy.repo:gpgcheck=1
/etc/yum.repos.d/fedora-updates.repo:gpgcheck=1
/etc/yum.repos.d/fedora-updates.repo:gpgcheck=1
/etc/yum.repos.d/fedora-updates.repo:gpgcheck=1
/etc/yum.repos.d/fedora-updates-testing.repo:gpgcheck=1
/etc/yum.repos.d/fedora-updates-testing.repo:gpgcheck=1
/etc/yum.repos.d/fedora-updates-testing.repo:gpgcheck=1
/etc/yum.repos.d/freshrpms.repo:gpgcheck=1
/etc/yum.repos.d/livna.repo:gpgcheck=1
/etc/yum.repos.d/macromedia.repo:gpgcheck=1
/etc/yum.repos.d/macromedia.repo:gpgcheck=1
/etc/yum.repos.d/macromedia.repo~:gpgcheck=1

Some of these look like duplicates, possibly where i had trouble during config. The power went out twice while configing my system, thanks to TS Ernesto. If these are duplicates, would they cause problems? And obivously if so i should ammend the repo list accordingly? By the way hollywoodb thanks abunch.

Both of those are wrong

See, instead of '0' or '1', they both have '1dries]'

the duplicates are fine, some repo files list more than one repo inside of them, and each entry will have its own 'gpgcheck' value. No need to worry about that... You do have a couple of *.repo~ files (they end with '~'), you can delete those since they aren't doing anything. By default when you edit something with vim it leaves behind the pre-edited file with a '~' on the end.

I would remove
/etc/yum.repos.d/dries.repo~
(ends in ~ and the dries.repo file is the other one (below))

and fix
/etc/yum.repos.d/dries.repo
which is that actual dries repo file and has the '1dries]' instead of '1'. There may be other typos in that file, maybe not, but the invalid gpgcheck error you're getting is because of this one.

Also, you have:
/etc/yum.repos.d/macromedia.repo
and can delete:
/etc/yum.repos.d/macromedia.repo~:gpgcheck=1

if you wish

Thanks dude. You don,t known how much i appreciate the help. I would never make it w/o help from the community. Really loving an learning Linux.--------- Now i have an e-mail problem i have posted in several different forums {not all on this site},it's only on my fedora box that i can,t send mail???? Everything is configed the same, neither tbird or evolution will send. They can recieve. This is the error tbird gives "The message could not be sent b/c connecting to smpt server failed. The server may be unavaible or is refusing smpt conn. Please verify setting is correct and try again, or else contact your system admin.