Missing waves and AI

Need help from those wonderful gurus on this site.The braking of the waves show up as squares, they follow the same sort of sequence, and they run all along the coast. I'm thinking of corrupted or missing texture files, if so, anyone knows which ones should be reinstalled.And second, the AI traffic is missing, ATC is on. When I try to go and see what's flying out there by pressing CTRL W, my aircraft is the only one that appears, nothing else, no traffic at all. But if I go to Europe, Bremen airport which is the addon available for it, I can see all the wonderful traffic around me.All my sliders are to full. Any thoughts are highly appreciated, thanks!