I have a similar problem. I have a dell inspiron one 2305 Windows 7, 64 bit and about one week ago we had a power outage. Since the entire screen and font has changed. I can not download files from the Internet and I attempted to run Dell Support Center and it is gone too. I even tried to use the automated help that finds your service tag and it to will not download or install. It (the computer) tells me I need .NET framework of 4.0 which I don't know what that means but, I am sure I had it before..It is like something threw away all my important things.. My Dell was working like a champ before, now I have no idea how to fix it!!! I even tried a system restore. That is about the extent of my computer knowledge, anyone out there that has any ideas I bow to your intelligence and ask for suggestions.
Thank you,
Mrs Robinson