When I get in my car after it hasnt been driven and let it warm up until its out of the blue zone it runs great until i try to drive. Ill put it in the S1 gear and leave it there because of traffic around campus... i dont feel like wasting my brakes. Anyway ill drive forward a bit when sittig in traffic then let off the gas, the idle will drop and drop and drop until its like right at 500 then it feels almost like the tranny wont clutch, the idle will just sit there and make the engine stumble until i either put in in N or drive.

After ive been driving for awhile this problem vanishes. Any ideas?
thanks.
-Justin

dirty or faulty idle control valve?