Wirelessly posted (8700g: BlackBerry8700/4.2.1 Profile/MIDP-2.0 Configuration/CLDC-1.1 VendorID/100)
Error 535 is out of memory error, I belive. Is that your issue? If so, start with a hard reset (pull battery), then see
http://blackberryfaq.com/index.php/Main_Page and read the artilces regarding increasing free memory.