[b]Official Reply From Acer Australia[/b] Hey Everybody, An official reply from ACER AUSTRALIA was posted a few days ago on another forum with what they suggest as a software fix. See below: "Thank you for visiting our helpdesk support. I will be assisting your enquiry today. Issue / Problem Description: The system will hang up or freeze intermittently. This issue is likely to be caused by an inconsistency in the BIOS version and audio driver. Solution: Update the BIOS version (v3211 or later), and Audio device driver (v5.10.0.6024 or newer) from the Global Acer Driver & Download page. I strongly suggest you to run an eRecovery after updating the BIOS. Once system has been restored to factory settings, you will need to update the audio driver version and check if the problem still persists. Performing a system recovery will eliminate any other potential software problems which could contribute to the freezing symptom. Instructions: 1. Visit the Acer Support website, click on the “BIOS” tab and download the latest BIOS version. ( [url="http://www.acer.com.au"]www.acer.com.au[/url] under Service & Support tab under Drivers & Downloads ). You should be able to flash the BIOS from Windows using the files supplied in the downloaded zip folder. Warning: Acer is not liable for any failed BIOS updates where customer has not followed the instructions accurately. Ensure your unit has the power adapter connected before proceeding with the BIOS flash. After successfully updating the BIOS, you will required to download the latest audio device driver from the same website. Click on the “Driver” tab and you’ll see the “Audio Driver” by Realtek. Download this file to your computer. You will need to uninstall the currently installed version of the Audio device driver before installing this new version. To uninstall this you will need to click on: Start -> Control Panel -> Progams (Uninstall) -> select (Realtek) Audio Driver and click on Uninstall. Install the new version and reboot the machine. Has this resolve your issue? Thank you and have a great day. Best Regards, Technical Support Department Acer Computers Australia" I've just carried out the instructions and don't know yet whether or not this does fix the problems in XP but thought this may help others. Cheers.