Just wanted to post an image of the terrain problem I have since beta 29 and 30. Full install of 29 with 30 upgrade.
The tarmac graphics flow in waves. I have tried almost every possible combination of graphic settings within AH2 and also through ATI control panel.
I did not have this with beta 26 for sure. I didn't try 27 or 28 so I don't have a definite point of reference for when it could have started - sorry.
Hope this helps.
AMD 2600XP+ / 512MB DDR RAM
Win 98SE
ATI 8500 (128 MB) w/ latest ATI official drivers
Latest DirectX
http://flightsims.info/datas/users/1-beta30.jpg