Thanks to all who replied, and to those who are having similar grief here is my solution(s).

The excellent tip from Nicholas Harvey was a link to an Apple document <http://docs.info.apple.com/article.html?artnum=106464>.

I had started in single user mode and got halfway through this on my own, before getting stuck from lack of knowledge. I'm sure if I had deleted the "com.apple.windowserver.plist" as described I would have been home.

As it turned out, by the time Nicholas's email had arrived I was well into an archive and install of 10.3. After applying the 10.3.4 combo update and then the 10 or so other updates that then showed up in "Software Update" things were back to normal. Thank goodness for Westnet broadband, it seems that all Apple Software updates somehow comes through WAIX and so it is counted as free in my monthly quota.

my original problem is recounted below.

Thanks to all.

robin
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Help required.

I have just upgraded an iMac on our home network to 10.3.4 and the loginwindow process seems to be broken.

When my son logged out things went a bit wrong and on the next restart the computer boots all the way to the screen with "starting loginwindow, where upon it cycles endlessly through a blue screen with the windmill, a brief cursor then the windmill again.

I can see the computer on the network at this stage.

I am presuming the plist file for loginwindow is badly brocken. Can someone advise me how to connect remotely, ie ssh or telnet, and if possible remove the offending file?

Please reply directly to me as I am on list digest mode and wont receive any response until tomorrow morning (Sun) and would like to fix it today if possible.

thanks