

tbh i prefer white on grey or red on yellow tho, white on black is kinda hard to look at for long. black on white is good but many programs these days output very bright coloured text, almost impossible to read on white bg.
iirc black on white is also the default on xterm

try the pulling CMOS battery thing (you also need to disconnect power btw), if it doesn’t work there should be a CMOS RESET jumper on your motherboard, try shorting that.