just got my screen fixed after not having the phone for a few weeks, anyway to the point
(trying to jog my memory as i type this post)

im not sure how it came about if it was a update to 4.2.1 or a cydia update but sbsettings drop down menu decided not to work, i did a quick search at the time and think i came to the conclusion it was because i was using 4.2.1 (i think but cant remmember when i put it on), So left it alone hoping id read news it was fixed..

can anyone shed some light on this subject and the reason it has accured, it would save me a bit of searching and possibly avoid trial and error, thanks.....