Graphics annoyance with hanging greenery

[Sauz]

Have a problem with hanging greenary from cliffs....  They used to be ok but now, they are opaque.<img src="http://img170.imageshack.us/img170/6094/opaquehanginggrassvg5.jpg" alt="" border="0" />Anyone can help? thanks...

[Sauz]

noone else had this problem before?

[Wingrider01]

Might help if you detail out your system, video card, memroy, processor, in game settings, etc