thanks for the replies .. :D just now we hacked around the pc trying to find the cause ... and it seems like his Gfx card is broken ... we tried it on windows with 3D game running and it crashes too.... also, before this the LCD screen is flickering all the time, at first we though that it was the LCD display that was broken... but after we took off the ATi card and conenct the monitor to the internal Via gfx card .. the screen doesnt flicker anymore ... so we conclude the gfx card itself is broken ... thanks again :) -- ----------------------------------------------- regards Hikaru ----------------------------------------------- Mohd Izhar Firdaus Bin Ismail Amano Hikaru 天野晃 「あまの ひかる」 Universiti Teknologi PETRONAS ICT 2nd Year 1st Semester mohd.izhar.firdaus@xxxxxxxxx ----------------------------------------------- kagesenshi.87@xxxxxxxxx Blog: http://kagesenshi.blogspot.com -----------------------------------------------