I have Compaq CQ61 with AMD Mobility 4200 graphics, latest Catalyst 13.1 drivers. After this update I began getting blocks on the screen with very blurry type that cleared up after a screen refresh. Uninstalling the update now.
A microcode update is available for Windows 8-based computers that use AMD processors
http://support.microsoft.com/kb/2818604
Robear,
The microcode update (KB2818604) is unrelated to Platform Update for Windows 7/ Internet Explorer 10 and the symptoms "Newstech" cites. The microcode update addresses an issue with certain AMD
CPU models on Windows 8, not Windows 7.
This topic regarding Platform Update for Windows 7 (KB2670838)
is a specific compatibility issue with certain GPUs, on mobile hybrid/switchable graphics solutions with particular driver versions. Microsoft is actively working to address this issue for customers.
I saw an earlier comment in the thread that this issue was happening on non mobile hybrid/switchable graphics solutions. Can folks who are hitting this issue or other graphics issues specifically related to Platform Update
(KB2670838) who do NOT have mobile hybrid/switchable graphics systems please post dxdiag.exe logs? Run
dxdiag.exe and then click "save all info". The key sections from the dxdiag log file are "System Information", "Display Devices", and "System Devices".
Dan Charlton
IHV Readiness PM
Windows PC Ecosystem Engineering
Microsoft Corporation
(please excuse the use of my personal Live account without the Microsoft logo next to my profile)