bdanderson

the power in my house was recently turned off, when it was turned back on my computer wouldn't turn on. i took it to a pc shop and they opened it up to take a look. they did a test on the power supply and it failed, so i bought a new one. when i brought my pc back to get the new power supply installed, the old one pasted the test. the guy removed all the wires running from the power supply, and then reconnected them. when he hooked everything up the computer would turn on. now whenever i put something in the usb the error "USB device not recognized, one of the usb devices attached to this computer has malfuctioned and windows does not recognize it." comes up. not only that but it will come up even if nothing is plugged in. under device manager two unknown devices are always present. it happens to every usb device i have and on all the usb ports. also when the computer is off it does not turn on right away when you push the power button, i have to push it, let go, hold it in, let go, hold it in, push again, and it will come on (not the exact sequence, but about). i have tried all the things i could find on the web and nothing works. i have vista 32 bit, mci mother board, intel d core 3.0ghz. i dont much about computers and cant speak greek.