Mercedes Benz 190e Power Window Fuse Problem


I just got my 190e a little over a month ago and there appears to be a little gremlin screwing around with the power windows.  To begin, the rear power windows have never worked; I assumed it was a problem with the regulators.  But now I've noticed that twice, I've blown a fuse for the driver's side windows.  Luckily I purchased several last time I found them but needless to say, I feel like blowing a fuse every few weeks is a sign of something bigger that can be addressed.  So;

1) Why do I keep blowing a fuse on the driver's side power windows?

2) Could that reason be related to why the rear windows don't work at all?