Hello i sent this to support but still waiting and i need help

Since going from shared to dedicated here I am having a problem. First, I cannot access my email from my control panel. I log in and get a blank white screen and it never connects. Someone sent me a response back about using thunderbird or outlook. I want to access my email through my control panel like i did with shared hosting here.
Second, I run a forum like this one. Since moving to dedicated my email to members is not going through at all or at the very least is taking a very long time. Is there something in my mx records that need changed here or can someoone check and see why my email is a problem since going to a dedicated sever. thanks steve