hello PJAM..i did a search to see if anyone else had this problem. i found a solution on the trusted reviews forum.. click the link and see the posts of brian willis. i've two merged into one, to help you

http://www.trustedreviews.com/forums...480&page=2

''It would appear that the Ambilight issue has been resolved.

Philips released a fireware update a few days back. However, they haven't updated the revision list in the PDF. After clearing my IE cache, and downloading, the update has cleared up the Ambilight problem with the HDMI input.

Philips appear to need to get their house in order!

If you previously downloaded the firmware with the same name, you might need to clear your IE cache, otherwise you might end up just re-using the old cached file.

Then download to a new location, unpack the ZIP file and pop onto a USB. Switch the TV off, plug in the USB, power the TV up, it should then detect the file and automatically update the TV. Or at least that's how it worked for me....''

miguelo creo que lo que quiere decir que limpiando el IE Cache puedo instalar nuevamente el ultimo sotware,pero no tengo ni idea que significa el IE Cache a ver si me lo puedes aclarar.un saludo