Rear Vent Trouble

[SilverBullet]

I did a search and read through some of the threads regarding the issue of little air coming through the back vent. I have a similar issue, where I turn the rear fan up, and little air comes out. I removed the S shaped filter and it is free of obstruction. I am not sure what else I can do, I am not handy so I do not want to remove the entire center console. I was wondering what other people have done concerning this issue, and whether or not their rear vent is blowing fine? Also exactly how much air should be moving through the rear vents? Thanks.