Steering

[Ghostcloak]

I've noticed that my probe front end feels like its "sliding" When i'm on the highway (especially on the highway, the fast i go, the more noticeable it is...) i can sometimes feel the steering wheel turn, yet my car continues to go straight... or as i turn, the car doesn't "catch" right, and so it'll slowly turn, but then outa no where, just take the turn even sharper, tho i'm not turning the wheel. when i make the slight turns in the highway, or i hit an unlevel plane in the highway, i feel the car jerk, a feeling as if the front end is just "sliding" on the axle. The axle is secure though, nothing's lose or missing... any ideas? I've taken it to midas.. they have no clue.. Front end alinement was just done and it was fine... Tire pressure good.... Brand new Z rated tires... and its still doing it!!!!