when flying i see blue and black come and goes help

hey i have this situation where i get blue and black in the scenery then i hear chimes guessing vas usage is high. I have a i3770k with 12gm ram windows 7 but no video card. I use the onboard hd4000 video from my intel processor. Could it be i am a the limit of my video card. I just order a EVGA GTX 970 ftw+ video card to put in the system. Other question is when flying out FSDREAMTEAM KLAX there is land where the ocean should be. I go in scenery library and uncheck one of the vector scenery and that seems to but the ocean back. Is there something worng with my setup?