I wanted to give Intel Support a heads up on the latest G45 Windows 7 x64 RC drivers that are available on the Intel Website.
Installing GFX_Win7_64_18.104.22.1688_PV_Intel.exe on my Intel DG45ID based HTPC makes Windows 7 RC Media Center unusable. WMC will crash and restart itself every couple of hours while watching or recording live TV. The crashes cause the WMC TV listings database to become corrupted along with any recordings that were in progress.
I also experienced similar crashing issues with all of the G45 video drivers that Microsoft supplies automatically when doing a clean install of Windows 7 RC or that are downloaded from the Microsoft Windows Update site. I used the Microsoft Connect Website to report the many issues I encountered with the G45 video drivers that came directly from Microsoft.
Using the Intel G45 Windows Vista drivers from the Intel Website, GFX_Vista64_22.214.171.124.1787_PV_Intel.exe or GFX_Vista64_126.96.36.199.1829_PV_Intel.exe restores stability to Windows 7 RC Media Center. I've never experienced a crash when using either of these drivers. Unfortunately these older driver drop the Windows Experience Index basic score down to 3.6 or 3.7 (all scores other than video are 5.9 or higher on this box). These older drivers also do a poor job of playing live or recorded HD TV. Live HD TV and recorded HD TV playback show occasional horizontal bars in the video that appear to be the result of some type of latency issue because I can rewind and replay the same scene again and the horizontal bar will not be present.
One other thing that might be noteable. I must use custom DTD registry entries to eliminate over-scan on my 60" Sony 1080p TV. If I use a different DTD resolution setting for the desktop than what I select within WMC, the RC video drivers will sometimes cause a spontaneous reboot or cause a BSOD when WMC is switching between resolutions.The dump file created by the BSOD always shows igdkmd64.sys as being the source of the crash with a corrupt pool or TdrBugcheckOnTimeout as the reason for the fault.
I'm using the latest drivers available for all of the hardware. Here is my HTPC configuration.
Intel DG45ID Media Mother Board
Intel Core 2 Duo E8400 3.0 GHz Processor
Hauppauge 1213 WinTV-HVR-2250 Dual Hybrid PCI-E TV Tuner
Seagate 1.5TB Drive ST31500341AS
LiteOn IHES206-08 Blu-ray Disc Reader
Antec Fusion Remote HTPC Case
Sony KDS-60A2000 HDMI SXRD LCD Projection TV