Touch pad doesn't work and some icons blinks after start up in hp dv4 pavilion 1211TU??

immediately after start up,my computer icon and task bar continuosly blinks and touch pad doesnt work,,it does'nt allow me to click on anything as everything seems to be blinking.and then if i press any button  on keyboard the blinking stops and laptop works normally....is it a hardware problem or a software problem?

Hey there Kin,
Im not sure I understand the issue. Do you receive any error messages when you log in? To me this sounds like a software issue. If everything works normal pressing a button I would assume all the hardware is fine.
-Sean
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