Greetings! After installing Windows 7 on my Dell Latitude D810, I've completely lost all audio. At the Dell Drivers and Downloads site, there are no audio drivers for Windows 7 and my laptop. However, I've read on other forums that people have had no issues with their audio and others who had problems, but were able to find drivers that worked. If I remember correctly, I think my audio setup is called Sigmatel C-Major...? I can't verify that because I'm told no audio is currently installed. I've downloaded quite a few drivers in attempts to fix this, but no matter what, I'm still told "No Audio Output Device Installed." I've downloaded the following exes to no avail: D810_A05.exe, R99254.exe, and S1wua01i.exe. Anyone have any suggestions to get my sound back? Much appreciated and many thanks in advance.