Vent and Full screen problems help

[Predator3088]

ok so i am new to servers as of last night... I am trying to use vent with a friend who also just join the server last night...however whenever i try to talk to him it will not let me. I have to alt tab to talk with vent. Anyone know how to fix that?

Also when i try to change it to full screen it changes it but the EQ screen is only half off my laptop screen. plz help thxs