If Driver graphics are messed up even after installing libgles* for you too (black textures), here's a solution posted by ucahmetuc on meegoturkiye.org forums:

1. Create a blank file, name it driver.ini
2. Content for driver.ini:
3. Copy it to your device, location: /etc/powervr.d/driver.ini
4. ??
5. profit

Of course you can use nano if you prefer.

Well, It works for me at least