Hi,All the default aircraft fly super-smooth however as soon as I load up a G1000 equipt aircraft my system is on it's knees! Anyone else had this?

u might wanna try this tweak in fsx.cfg from Phils bloghttp://blogs.msdn.com/ptaylor/default.aspx ......................................................There is a tweak that helps with panel updates, especially the glass panel. If you use the glass panel and notice very slow updates. There is a 2 part tweak:[GRAPHICS]DirtyRegionUpdateLimit=By default this UINT32_MAX (i.e. four billion or so) so it has no effect.Setting it to zero effectively forces full texture updates instead.Setting it to smaller numbers (1-1000) might improve performance if the card is slow at full texture updates and does not have a high overhead for incremental updates.[GRAPHICS]MergeDirtyRegionUpdates=<0/1>By default this is 0 (i.e. disabled) so it has no effect.Setting it to 1 (enabled) causes us to merge all of the dirty rects into a single large dirty rect. This means that we will only do a single partial texture update.This may work well if the card is slow at full texture updates and does have high overhead for incremental updates.