Thanks for posting; I’m logging your post against case 495142.
It sounds like your board is causing your cursor to move erratically due to inducted electrical interference. Can you please advise if this is an AB500? If so, you may be able to use your pen by disabling touch in Activmanager.
In either event, we may need to get fairly deep into troubleshooting to identify the cause of the issue. Can you please contact us with your serial number over the phone or through our knowledgebase at http://www.prometheankb.com and we will assist.
Promethean Technical Support
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- Release notes for myPromethean Portal v1.6 (released 1 December 2021)
- Release notes for ActivConnect OPS-G v2.6.0 (released 17 November 2021)
- Release notes for ActivPanel Elements series v5.1.200 (released 20 September 2021)
- Release notes for Radix agent v1.27.1 (released 25 August 2021)