Please expand on the symptoms..."wont allow" is rather too little from which to make any guesses useful. For instance, what exact steps are you following? What exact results from each step do you witness? Are there any error messages? If so, what is the exact and complete content of those error messages?
Thanks and let us know!
Occam's Razor nearly always applies when troubleshooting technology issues!
If anyone has been helpful to you, please show your appreciation by clicking the button inside of their post. Please click here and read, along with the threads to which it links, for helpful information to guide you as you proceed. I always recommend that you treat your BlackBerry like any other computing device, including using a regular backup schedule...click here for an article with instructions.