At this moment I managed to work arround this problem by turning the laptop on and when I get the black screen, I unplug the power cord from the laptop (not from the wall wait a few seconds, plug it back in and after turning.
See the manual for any key combinations. You don't actually say if wireless is working or not, but I assume not. Go Control Panel, System, Hardware, Device Manager and see if the wireless network adapter is present or whether it yellow flagged as faulty.
If you know other sources for Sony laptop manuals, please feel free to post links in comments. Do you have a problem with your Sony Vaio laptop? Post it here, somebody can help you.
Ibenk, could you verify, if both of these identifications (PCG-71314L and VPCEB 23FM) are being indicated on your laptop? Somewhere on the labels, manual, or invoice papers?
My laptop is a Compaq nx9600 2GB RAM, 80GB HDD, ATI Mobility Radeon X300 64 MB that came with Windows XP Pro. When I Installed Windows 8 Pro., I had problems with the Radeon X300 driver, dont ask me how or where I found the.
M/US/perl/?mdlVPCE. There's no PCG-71314L in Sony's support catalogue, however, according to the message in the thread linked below, this laptop is also called VPCEB 23FM, which is indeed in the catalogue.uk/forum/ hard-driv. It would be interesting to know, why this product has two model numbers.