I took the never option eventually and rebooted, got this as a reward.
OOPS!! WTF, all I did was choose an option, how come the whole shebang goes on strike.
After a while of rebooting and trying troubleshooting I get this.
Eventually after several more reboots, and hard resets, I'm back up and running again.
I have uninstalled Trusteer,and sent a report of what happened to them, if I need it again I'll reinstall it, but I don't understand why it has suddenly blocked my screen grabs, it's been on my laptop for a god year or more.
Time to test the snipping tool & postimage.
And we're back I think, thanks for the attempts at help guys.