Thanks Morpheus, the text doesn't appear "streaky" anymore.
Now the only problems reside in SMK 64 and BMan 64.
Sometimes the screen just disappears in BMan 64. For example, the intro loads up and it shows in-game scenes of B-man running, then suddenly the whole screen goes black, then it shows the in-game scene again, then the whole screen goes black. Also, there are no cursors on the menu screen, please see attachment.
In SMK64, there are these black boxes/triangles that appear on the race track. Doesn't happen in Daedalus, but happens in RV 6.0.0c. [SOLUTION PERSONALLY FOUND: I turned off forced lighting & software vertex clipping, now the black boxes are gone.]