Packard bell heat and usb error message problems

I have a PB AGM 20
we run Vita and Internet Explorer
The fan is always on and the underneath of the lapop is always very hot
any ideas?

Secondly frequently we get an error message "this USB device can perform faster if you connect to a Hi Speed USB 2.0 port

all ports are 2.0.....

When we get this error message the connection to the internet doesnt work

Any ideas?

Thanks!