Not sure if this has been posted before but running Metro UI needs a minimum resolution of 1024 X768 which IMO seems a bit absurd in view of the large number of netbooks and tablets having a slightly lower resolution like 1024 X 600 which seems to be a common size.
You can "poodle fake" the screen into "down-rezzing" allowing you to use a slightly higher resolution to get round this limit.
Not sure where I got the info from - but thanks anyway to whoever found this out.
It doesn't look too bad on the netbook but if you don't like it then it's easy to change back again.
1) Run regedit
2) Search and modify all values "Display1_DownScalingSupported" from "0" to "1"
3) Restart the system
4) Enjoy with the two new resolutions 1024x768 i 1152x864