When I open a background image on my desktop, the image flashes full screen and then only the left quarter shows. Rest appears to be covered by white box. Icons are still visible in white area. How can I fix this?
If you have WD memeo auto syno installed it could be that as I've seen another forum where someone had similar symptoms.
Otherwise try turning down hardware acceleration and see if that helps. Follow this guide: http://www.deskshare.com/Resources/articles/dmc_turnoffhardwareacceleration.aspx
If it works then try turning acceleration back up 1 notch at a time until you find the highest value that works.
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix desktop pcs.