Ok so from googling a bit it looks like no one else has ever seen, or found out about this issue yet. But Tiberian Sun (also RA2) suffers from severe lag in Windows 8 which can be fixed by the CnC Graphics Patch. But Tiberian Sun also has a strange issue where you cannot see the menus. You can start the game pick either firestorm etc. But you can't see any menus that are not the main menu, essentially makes the game unplayable.
Although you can start a skirmish if you just hit enter after clicking Skirmish on the main menu, but the options for skirmish and "esc" menu in game all are just invisible. Anyone got any ideas?