Hi,I'm in need of some desperate help. I have a K790 Sony Ericsson phone, and I am unable to access the applications folder and games folder. Even if I save an "executable jar file" in another folder and click to install it. The error message reads "Operation Failed". This message appears even when I try to open the applications and games folder. This has been happening in the last 2 months.I used to have a lot of downloaded games, themes and other applications that were installed, but i deleted them all since I had this problem and have kept only 1 file on the phone to check it.I have so far tried shutting down and restarting the phone, and a master reset. There is nothing on the PC software suite that allows for a reformat of the phone.There is nothing of importance on my phone as I have backed it all, numbers are all saved on the SIM card.Please if anyone has any idea, please help