Installing the below link that Pete_C provided fixed not only the sxbios issue but also enabled hotkey functionality on a PCG-GRT260G, w/Windows XP Home (SP3). Direct download ftp://download.sony.com/US/pc/SOASSL-10133900-US.EXE I was doing a fresh reload of this machine and I think the issue is Sony hasn't updated their links for some of the utilities for their older laptops. The version of SOASSL... that's provided on the PCG-GRT260G drivers download area is SO-P30800803IJ03US.exe...from 11/14/2003. That was before XP SP2 (not to mention SP3) was released I believe. In any case, the link