Can't use any other program while on phone
**I apologize if this has been asked already, I used the search engine and couldnt find anything....althought I did not read all 20 pages of posts***
Recently jailbroke my iPhone 4 and use cydia and winterboard. First big glitch i noticed is that I can no longer navigate to another program/app while I am on a phone call. In the past, I've just double clicked the home button and the small menu of icons pops up on the bottom of the screen, and I can choose to text, use the internet, view my contacts, etc all while still being on a phone call. Since I jailbroke, however, I can not longer double click the home screen buttom and produce the small icon menu.
Has anyone else had this problem? Could it perhaps just be some settings that I need to change? Any help would be appreciated.