Has anyone had this before or heard of? I own a Sont Vaio RS-520 with a 160 GB harddrive. When I turn on my computer it displays the Windows XP logo like normal then it goes into sleep/standby mode for almost 25 minutes. During this whole time, nothing is running. The monitor is black, the light on the power button is not blinking like it should when it's running programs. After 25 minutes, the CPU comes back to life and everything starts to load. What is causing this big booting delay? Is it a hardware or software issue? I wanted to reformat but was afraid the CPU will not work at all. It also takes this long in DOS mode. Any help is greatly appreciated.