Having some fun with the APC monitoring daemon (apcupsd) - I've installed the Whitebox rpm and it runs OK but I cannot communicate with the UPS on ttyS0 or ttyS1. I'm using a supported cable (according to the utility's Web site). I've followed the troubleshooting tips on the app's Web site with no luck - the only bit that I can't resolve is it recommends disabling logins on ttySn - how's this done as I can't find any notes on the site or via a google search. Does anyone have any experience of this utility - and any tips? Thanks Nigel Kendrick