iPhone 4 AT&T running iOS 5.0.1

My first concern I have is the screen no longer lights up after to move the phone away from you face. I have to press the home button, even after the other caller hangs up. Before the update/jailbreak it did just fine. I have a few Cydia tweaks installed and removed them one by one to see if any were the culprit. So I guess I am not sure if this is just part of the 5.0.1 update. I can't imagine it is.

The other issue I am having is my doc sometimes just disappears or sometimes ALL my icons. One of my favorite tweeks is Five Icon Doc (now removed). It's no big issue to reset it. I just have to press the power then go back into the phone. Again, I may not have this issue now since it was very random and it may be solved now that I uninstalled my Cydia tweaks.

Is anyone else having these problems?

Thanks in advance.