LT Power window problem

[AnthonyTDCi]

since having my car for the last 2-ish months i have noticed a problem with my front drivers window.

when the window is down (not all the way) when i pull the switch up to lift the window up, the window will go up slightly and then actually go all the way down automatically. at first i thought i had hit the button wrong or something....but it does it a fair bit, but not all the time.

has anyone else had this problem?

anthony