unplugged all devices to it bar monitor, usb keyboard/mouse, and power supply so it should go straight to USB and just get boot error.
changed RAM to what it originally came with and still the same. Could it be that it doesn't like the memory stick I'm using?. Just a generic 2Gb one.
yes ive seen that also,and is the usb stick formatted to fat32? not sure if it boots from ntfs but might need to me made bootable