Update Manager shows 'An error occurred Error 3'

  Sierra5 17:59 26 Apr 10
Locked

My pc is running Windows 7 64 bit. I get an Update Manager error message which states 'An error occurred Error # -3' Whenever the update manager tries to check for updates. If I click 'update now,' It tells me I'm not connected to the internet. (I am connected) Following the more information link to the consumer.installshield.com website I'm told the error is either due to running ie5 or earlier (I'm running ie8)or that the pm.html file is corrupt.It then suggests reloading the update manager but uninstalling and reinstalling this has not solved the problem.
Any suggestions?

  961 19:03 26 Apr 10

Which browser?

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