Toshiba Satellite M205-S4806 will not power on. The adapter works (plugged it into another toshiba). I have removed the battery, unplugged the adapter, held down the power button for 30 seconds hoping to discharge electric current, then reseated the battery and plugged in the adapter. Still no power. I am thinking the power connector may be defective or loose on the systemboard. Any one have any suggestions?