Sorry for double post earlier. Using iPhone and it left 2 posts for some reason.
I normally just search on here for answers, but couldn't find anything.
So I just deleted all open safari pages and switched on aeroplane mode, deleted history etc. Then switched off phone left for a couple of mins. Switched back on straight to jailbreakme.com and voilā it worked loaded and working not sure about FaceTime yet but got it installed which I was totally unable to do previously.
Just thought I would post in case somebody else has same issues.