update manager problem

You need to install the public key for this software source to make it trusted.
Run
sudo apt-key adv --recv-keys --keyserver keyserver.ubuntu.com CCC158AFC1289A29
in the Terminal to do so.

ailed to fetch http://packages.linuxmint.com/dists/helena/Release Unable to find expected entry universe/binary-i386/Packages in Meta-index file (malformed Release file?)
Some index files failed to download, they have been ignored, or old ones used instead.
i did as you said and got this from update manager

Failed to fetch http://security.ubuntu.com/ubuntu/dists/karmic-security/Release.gpg
Failed to fetch http://security.ubuntu.com/ubuntu/dists/karmic-security/main/i18n/Translation-en_US.bz2
Failed to fetch http://security.ubuntu.com/ubuntu/dists/karmic-security/restricted/i18n/Translation-en_US.bz2
Failed to fetch http://security.ubuntu.com/ubuntu/dists/karmic-security/universe/i18n/Translation-en_US.bz2
Failed to fetch http://security.ubuntu.com/ubuntu/dists/karmic-security/multiverse/i18n/Translation-en_US.bz2
Failed to fetch http://packages.linuxmint.com/dists/helena/Release Unable to find expected entry universe/binary-i386/Packages in Meta-index file (malformed Release file?)
Failed to fetch http://archive.ubuntu.com/ubuntu/dists/karmic/restricted/binary-i386/Packages.bz2
Failed to fetch http://archive.ubuntu.com/ubuntu/dists/karmic/universe/binary-i386/Packages.bz2
Failed to fetch http://archive.ubuntu.com/ubuntu/dists/karmic/multiverse/binary-i386/Packages.bz2
Some index files failed to download, they have been ignored, or old ones used instead.

Your first problem looks like that package archive if damaged (on the server).
The second indicated a broken internet connection or a bad mirror server.
Check your connection and choose and other download server in the software package source menu.

please post your sources.list. nano /etc/apt/sources.list (gedit /etc/apt/sources.list)

deb http://packages.linuxmint.com/ helena main upstream import universe multive$
deb http://archive.canonical.com/ubuntu/ karmic partner
deb http://packages.medibuntu.org/ karmic free non-free

deb http://packages.linuxmint.com/ helena upstream import backport multiverse m$
deb http://archive.ubuntu.com/ubuntu/ karmic-updates main restricted universe m$
deb http://security.ubuntu.com/ubuntu/ karmic-security main restricted universe$
deb http://ppa.launchpad.net/aheck/ppa/ubuntu karmic main
deb http://packages.linuxmint.com/ helena main upstream import backport
deb-src http://packages.linuxmint.com/ helena main upstream import backport
deb http://archive.ubuntu.com/ubuntu/ karmic main restricted universe multiverse

> Todeb http://packages.linuxmint.com/ helena main upstream import universe multive$deb http://archive.canonical.com/ubuntu/ karmic partnerdeb http://packages.medibuntu.org/ karmic free non-free
deb http://packages.linuxmint.com/ helena upstream import backport multiverse m$deb http://archive.ubuntu.com/ubuntu/ karmic-updates main restricted universe m$deb http://security.ubuntu.com/ubuntu/ karmic-security main restricted universe$deb http://ppa.launchpad.net/aheck/ppa/ubuntu karmic maindeb http://packages.linuxmint.com/ helena main upstream import backportdeb-src http://packages.linuxmint.com/ helena main upstream import backportdeb http://archive.ubuntu.com/ubuntu/ karmic main restricted universe multiverse

 <email address hidden>
> From: <email address hidden>
> Subject: Re: [Question #102241]: update manager problem
> Date: Wed, 24 Feb 2010 07:46:36 +0000
>
> Your question #102241 on Ubuntu changed:
> https://answers.edge.launchpad.net/ubuntu/+question/102241
>
> leoquant proposed the following answer:
> please post your sources.list. nano /etc/apt/sources.list (gedit
> /etc/apt/sources.list)
>
> --
> If this answers your question, please go to the following page to let us
> know that it is solved:
> https://answers.edge.launchpad.net/ubuntu/+question/102241/+confirm?answer_id=4
>
> If you still need help, you can reply to this email or go to the
> following page to enter your feedback:
> https://answers.edge.launchpad.net/ubuntu/+question/102241
>
> You received this question notification because you are a direct
> subscriber of the question.

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connection all good the pc works great just has this problem,i dont want to but should i reinstall mint?

> To: <email address hidden>
> From: <email address hidden>
> Subject: Re: [Question #102241]: update manager problem
> Date: Wed, 24 Feb 2010 07:42:53 +0000
>
> Your question #102241 on Ubuntu changed:
> https://answers.launchpad.net/ubuntu/+question/102241
>
> Status: Open => Answered
>
> Thomas Krüger proposed the following answer:
> Your first problem looks like that package archive if damaged (on the server).
> The second indicated a broken internet connection or a bad mirror server.
> Check your connection and choose and other download server in the software package source menu.
>
> --
> If this answers your question, please go to the following page to let us
> know that it is solved:
> https://answers.launchpad.net/ubuntu/+question/102241/+confirm?answer_id=3
>
> If you still need help, you can reply to this email or go to the
> following page to enter your feedback:
> https://answers.launchpad.net/ubuntu/+question/102241
>
> You received this question notification because you are a direct
> subscriber of the question.

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+1 on that, no reinstall, just wait some time as said or give a it a try with a dif. server.
(ps i am not into mint)

Thanks Thomas Krüger, that solved my question.

i will give it some time thanks to you both