I presume you didn't buy this mobo specifically for LMCE given that all the recommendations on hardware are for nVidia graphics? With that in mind, when you do buy specific hardware, please ensure that you pick your graphics chipset carefully - anything in the 6200-8300 range is usually fine, sometimes requiring a driver update, the process for which can be found on the wiki under Display Drivers.
Some Intel chipsets (specifically the GMA945) occasionally crash LMCE, when this happens the screen freezes and nothing responds until after a reboot. Currently, there is no fix for this - hopefully the new kernel and drivers in 0810 may improve this situation - no timeline on this version yet.
The only work around is to disable Photo Screen Saver. This leaves the background unrefreshed, and so a bit messy, but it does work.