gnome-terminal "paint" issues?

[Brian Ericson]

I'm having "one-off" issues with gnome-terminal on my laptop.  At the 
bottom of the terminal, the results of a command typically (but not 
always) don't display until I hit "enter" a second time and PgUp/PgDown 
in man pages or vim oftentimes don't do anything (then, when the key is 
hit again, the result will be 2x rather than 1x).

Anyone know what might cause this?