Well at the end the final solutions to solve this issue were:
- Unselect the cleartype
- Click Start Orb > right-click computer > click properties
- On the left pane click Advanced system settings
- Under performance click Settings
- Check mark Smooth edges of screen fonts
- Click OK > click OK
- Change all my fonts sizes and types to tahoma and Trebuchet MS (XP style).
- That solved the blurriness but not the brightness (too much white in windows 7, the explorer is the worst) =(.