Todd S / Rob Hamilton / anyone experiencing the same,
I have a few questions regarding "throttling" issue on Studio XPS 1640-026B (OCT 2009):
Q1: Is this issue the cause of video problems like "web page image content causes display to blink rapidly as if trying to refresh the screen"?
Q2: Will a 130w adaptor help correct this issue on this XPS 1640?
@SF sorry for your luck. You must be the only one on the planet to have this problem???
I'm finally starting to find other links to othe rdiscussions regarding "laptop > video > display > screen > image > flicker > syndrome"
We finally determined that IE8 image flicker problem on Studio XPS 16 is most likely NOT associated with any power or power adaptor issue.
The "work-around" is to immediately Log Off then Log On after initial Startup and logon when booting to Win7 "mode".
XP or Vista "modes" have not been tested to see if the same image flicker problem exists.
Possible causes could be use of VistaBootPRO 3.3 and / or BIOS Setup setting ATA -- AHCI. It appears that the problem is the result of the order in which processes are executed during startup since it is corrected by immediate logon/ logoff/ logon after initial startup. VistaBootPRO 3.3 was installed to allow for multi-boot / the ability to boot to either one of XP, VISTA, or Win7 Operating System "mode".
The BIOS mode setting for ATA or AHCI must be manually changed when booting to XP vs. WIN7. ATA mode is necessary for XP, on this XPS 16 system, and AHCI mode is necessary for Win7: otherwise Blue Screen and Auto Restart is the result. It is possible that the need manually switch ATA-AHCI setting has something to do with the graphics drivers installed during initial re-format (this system was reformatted completely) after purchase. It was purchased the day before "universal" change from Vista to WIN7 on all new devices.
I believe it was necessary to "MOD" or MODIFY graphics drivers (during re-format) for ATI Radeon HD 3670 on DELL Studio XPS 1640 -026B because compatible XP and Win7 drivers may not have been available at the time (October 2009)