saseve

I have read other posts on this subject, but cannot try to apply the
suggested solutions. I have neither a mouse nor a keyboard working. When I
try to get into Safe Mode, the desktop comes up, but I cannot interact wthout
a mouse/keyboard. I booted to the Vista DVD, and restored to earlier times -
twice - and the problem persists. The mouse and keyboard work when I boot
from the Vista DVD. I am using a Dell E521 with Vista Home Basic. I called
Dell support, but nothing they tried worked either. Any suggestions would be
greatly appreciated.