Plus, I tried a clean install.
so renaming the blockland folder to blockland2, and redownloading it, and it's still a black screen?
do you have multiple graphics cards?
try updating your NVidia drivers
and asking again, since you seem to have neglected responding to this (probably one of the more important questions)
has anything changed between when it was working and when it stopped working?
[size=50pt]IT DIDNT FREAKING WORK[/size]
we can read the standard text size and font just fine