PDF Loading Warner is a patch that, once installed, warns you if someone tries to use the iOS exploit (the one on jailbreakme.com) to gain access to your terminal, by displaying a warning message. If you have installed it then you know very well that when you open the "clock" application you receive a warning message and after you click cancel the needles disappear, well a similar situation happens with the iBooks application.
The new version of PDF Loading Warner now available in Cydia solves these problems and should no longer show any errors. My recommendation is to install this patch from Cydia in order not to wake up with unpleasant surprises. The recommendation is for all those who have iOS 3.1.2 - 4.0.1, regardless of the method by which you did the jailbreak.
