2003 Chevy Cavalier drivers side window

I have an '03 Cavalier with about 49000 miles on it. Recently my drivers side window started to act funny, it would roll down fine but when rolling it up it would stop about half way up. After driving a little more it would roll up a little more, this would continue until it was completely rolled up. Then one day it stopped rolling down altogether and was just stuck in the up position. Then a couple days later it went back to the previous problem of rolling down and not going all the way back up. My question is if this sounds like a problem with the motor or the switch or possibly the connection between the two.