[Grml] Configuring Xterm logs

[T]

Hi,

I noticed lots of files like Xterm.log.grml.2006.07.09.22.26.11.3824 in my
home directory. How can I turn of Xterm logs by default?

Is there anyway to turn on/off the logging without using the menu? 

My Xterm's menu pop-up screen are unreasonably small. It's about 2 lines by
10 columns. The dimension is the same despite the window manager that I'm
using (Pekwm/fluxbox). Does it happen to you too?