I bought a Vostro 3750 last year for my wife and it didn't get used except twice. I never paid much attention to it until I turned it on this morning. I noticed the battery light blinks one white and 4 red signifying it was not charging. How do I enable battery charging on this model? I checked the documentation and did not see anything there. I guessing its the FN + one other key? Thanks for the help.

Larry