Interesting,

I just ran though to the climate control page using Opera as my browser, not logged into the EPC and I got the same error message that you did. Same thing on Firefox.

I logged out on Google Chrome and it seemed to work fine.

It looks like my Chrome and Firefox/Opera have different versions of Adobe Flash installed.

Best I can tell its something with Adobe Flash, all Chrome opens up everything no problem (confirmed on two computers)
Firefox/Opera would error out

Adobe Flash on Chrome: 11.2.202.229
Adobe Flash on Firefox: 11.2.202.233

Chrome uses its own stored copy of the flash plugin, where as Firefox uses the PC's common flash plug in..

EDIT: No effect when downgrading Flash to 11.2.202.228 (229 seems Chrome only)

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