Hi Ludwig,<br><br>Thanks for your thoughts. I've spent today clutching at straws and testing every possibility I can think of (including using shapefiles, which turned out to throw the same error).<br><br>Anyway, I *think* (and I really hope I'm not speaking prematurely) that I've solved this by changing the group names from 'CAD Drawings' to simply 'CAD'...
<br><br>The bizarre thing is that I can't replicate the error in any of my other apps.<br><br>Anyone have any ideas on why this might be?<br><br>Cheers,<br>Roland.<br><br><br><div><span class="gmail_quote">On 14/07/06, <b class="gmail_sendername">
Ludwig Max Brinckmann</b> <<a href="mailto:ludwigbrinckmann@gmail.com">ludwigbrinckmann@gmail.com</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
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<div><br>The error is being thrown on loading the map; approximately 80-90% of the time.<br><br>Also of interest may be the following gunk from the error logs:<br>[Wed Jul 12 16:29:11 2006] [error] [client x] Premature end of script headers:
php-cgi.exe, referer: <a title="http://x/lbia_dev/" href="http://x/lbia_dev/" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">http://x/lbia_dev/</a><br>[Wed Jul 12 16:51:08 2006] [error] [client x] Premature end of script headers:
php-cgi.exe, referer: <a title="http://x/lbia_dev/" href="http://x/lbia_dev/" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">http://x/lbia_dev/ </a><br>(etc)</div></blockquote></span></div></div></blockquote>
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<div>The error you are seeing might have to do more with apache and the long delay when getting data. </div>
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<div>This might be the doc you should be looking at:</div>
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<div><a href="http://httpd.apache.org/docs/1.3/misc/FAQ-F.html#premature-script-headers" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">http://httpd.apache.org/docs/1.3/misc/FAQ-F.html#premature-script-headers
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<div>HTH</div>
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<div>Ludwig</div><br> </div>
</div></blockquote></div><br><br clear="all"><br>-- <br>Please note my new email address. Use other addresses at your peril.