EAS info page contains links to the EAS Manufacturers web site, tips, and a link to an EAS checklist. I am also starting to compile a SAGE quirks page.
Most manufacturers offer some sort of software upgrade.
Make sure you have the latest. It should be free in most cases. If not, try contacting tech support, instead of the sales person you are probably talking to at the company. You can order a replacement from Harris or replace the caps in the wall wart if you know how or buy a PS from another vendor. Staples catalog no.