Desktop fails to load.

Hi guys,

New problem ! Following an upgrade to Debian Jessie, TDE 14 Desktop, when booting up, everything is fine until the machine gets to "Loading the Desktop". At this point it seems to hang for a minute or so before becoming a blank blue screen with only the mouse cursor present. From here the only thing that can be done is to select VT1 and login manually, typing "startx" gets to the Desktop.

I've noticed that only VT1 will get to the Desktop and all the other terminals except VT8 leave you with a blue background, whilst VT8 now has just a tiny blinking cursor on a black screen which has no response to anything.

Where do I need to look in order to put things back to normal ?

Thanks in advance.