Nick - autogen question

Nick,
Some buildings and smokestacks on my system (i7 920 OC 3.8, Nhancer + 181.20 drivers, 260 card, vert sync on, Accel, XP 32 + SP3, Nhancer set up per your instructions)have a horizontal shimmer.
What causes this and is there a fix?
Thanks.
Jack S.

Some buildings and smokestacks on my system (i7 920 OC 3.8, Nhancer + 181.20 drivers, 260 card, vert sync on, Accel, XP 32 + SP3, Nhancer set up per your instructions)have a horizontal shimmer.
What causes this and is there a fix?
Thanks.
Jack S.
