i have a sony vaio VGN-CS13G.. i recently had a virus problem so i tried to reformat my laptop. after that i ran the vaio recovery but unfortunately, every time i got to the disk 2, an "error 305" always occur and i cant get my old factory settings to work. so what i did is i installed a new OS (windows 7 ultimate). now its fine but the problem is that all the vaio softwares are now gone. my main concern is that the touch pad scroll (up and down, left and right), volume buttons, the music player control buttons and every extra button aside from my keyboard are all not functioning. adjusting the volume now is only through the volume icon on the taskbar. does any of you guys can tell me which driver do i have to install to get these buttons working? please!!!