First of all, why have u created two threads in the same section for this problem??
Try restarting ur explorer
To do this,
1>ctrl+shift+esc
2>Task manager will open, go to "process" tab, select explorer.exe
3> click on end task and click on "yes" on the following message box.
4>Go to Application tab, click on "New Task", at the provided text box, enter explorer.exe and hit "enter".
Do this and let us know if it works.