_Auster_: If you run Umineko from the terminal, upon hearing the static noise, does anything appear in the terminal's log?
Nope, nothing that correlates with those noises. Here is the output that happens right after it starts (noises don't occur right away):
===============
Couldn't initialize SDL gamecontroller: Couldn't find mapping for device (0)
Read global variables file
Error at line 12: unknown command [language]
(*define line 9)
Error at line 16: unknown command [errorsave]
(*define line 13)
Error at line 60: unknown command [addkinsoku]
(*define line 57)
Warning: alias `on' may conflict with some barewords
Warning: alias `off' may conflict with some barewords
Error at line 3125: unknown command [setlayer]
(*define line 3122)
Warning: alias `white' may conflict with some barewords
Warning: alias `black' may conflict with some barewords
Error at line 3135: unknown command [menu_click_def]
(*start line 1)
libpng warning: iCCP: known incorrect sRGB profile
Error at line 266691: unknown command [menu_waveon]
(*check_game line 1)
Error at line 261563: unknown command [c4]
(*b_sakuru_logo line 15)
libpng warning: iCCP: known incorrect sRGB profile