Hey Geoff, Have you tried resetting the PRAM? You can read more about this in the following apple KB article. If this resolves your issue you can thank Anne & Archie Robertson as they are the ones who turned me on to this nice little troubleshooting trick.
http://support.apple.com/kb/ht1379 HTH, Bryan On Oct 19, 2011, at 5:19 PM, Geoff Waaler wrote: > Earlier today my out of warrantee mid 2010 13 inch MBP was functioning > normally. I left it powered up and unattended for a few hours. There were > no electrical storms and my MBP did not experience any spillage or shock. > Now, sounds are only emitted through the headphone jack -- I don't even hear > the initial power-on tone, which would seem to suggest a hardware failure. <--- Mac Access At Mac Access Dot Net ---> To reply to this post, please address your message to mac-access@mac-access.net You can find an archive of all messages posted to the Mac-Access forum at either the list's own dedicated web archive: <http://mail.tft-bbs.co.uk/pipermail/mac-access/index.html> or at the public Mail Archive: <http://www.mail-archive.com/mac-access@mac-access.net/>. Subscribe to the list's RSS feed from: <http://www.mail-archive.com/mac-access@mac-access.net/maillist.xml> The Mac-Access mailing list is guaranteed malware, spyware, Trojan, virus and worm-free! Please remember to update your membership options periodically by visiting the list website at: <http://mail.tft-bbs.co.uk/mailman/listinfo/mac-access/options/>
