Nokia 6230

Hi this is my first time here. I've had my 6230b for almost three years and don't want to get a new phone when this one has more features than the new ones. I'd rather try to update this and learn how to use it's features better.

Can cellphones get viruses like a computer? I have been downloading from Mobango and ever since my battery will have 5 bars or more and then out of the blue it will be down to one bar warning me. I turn my phone off and I am back up in bars again for awhile. I am assuming I need a new battery after 3 years use but I just want to make sure I don't have a virus.

Also if anyone would be so kind to answer another question. When I try to play games my backlight keeps going off. I have to keep pushing keypads to keep it on so I can see what I am doing. I've gone into every option to change this the only one I know I chose the maximum allowable like 30 seconds. Is there any way to get the backlight to stay lit? Also is there any way to get my darn cell providers name to disappear. It's smack dab in the middle of the screen and in the middle of all my wallpapers...grrr lol.

THANKS A BUNCH