Ok, I got 4.5 all loaded on and everything. Then I was having problems with myfaves list, got that all refreshed by t-mobile. I even tried the video camera, it is great. I am excited. Now one problem I am having that I didn't before, it I had Yahoo Go. And I get it all set up and then go into my e-mail, or to look at the weather or something, and it won't go back a page. The only way to get out is to hit the end button. I have deleted it and reinstalled it a few times, but still won't work like it did. Anyone else have this issue or know how to correct it?