Hi guys,
I am having the same problem with the W520 graphics. I followed the procedure posted by breenmachine of May 14, 2011 but did change the bios settings only after having already installed Wubi 10.04 64bit. When I let it search for hardware drivers it does not find anything. Does anybody know whether this has to do with the 64 bit version or with the installation already present when I changed the bios settings?
Any idea of how to proceed?
Thank, D-E

P.S. I apologize for having opened a new thread with this some days ago. I only found out now that this problem was well known.