Hi there.
My Esprimo V5545 has Vista Basic installed on, but it has a very strange problem:
Randomly and happens a few times -may be two times a month- that the laptop monitor displays a white large spot that enlarge till it cover the whole monitor while the Windows freezes, so I have to press the power button for some seconds to switch off the laptop then start it again.
Vista is updated and the laptop doesn't feel hotter than the other times when the problem occurs.