I only have one LED light on my PRS-700, which is red when the reader is charging. Where exactly is this orange LED.
I will try to help if I can. Usually a full charge will fix a lot of the problems. I always charge with an A/C charger, not the USB port.
I just read the manual and there is a mention of an orange LED. It is the same LED but changes colour as follows:
Indicator - Lights up in red while charging, and goes off when charging is complete. Flashes orange while the Reader is accessing your computer via USB. Also flashes in orange while switching the Reader on or off.
I usually have the reader facing me while I'm loading eBooks so I've never noticed a change in colour. But now that I look at it, it does flash orange for a few seconds during initial contact with my PC.
When I put my reader in standby mode, it doesn't flash orange. I have never turned my reader completely off.
My only suggestion is to let it fully charge. Anyone else have any ideas?