This is how i do it:

Right click in active game area, then click on Global Settings:

Click image for larger version. 

Name:	_1.jpg 
Views:	42 
Size:	58.4 KB 
ID:	51738

Click on Delete All in the storage tab:

Click image for larger version. 

Name:	_2.jpg 
Views:	41 
Size:	47.4 KB 
ID:	51739

The click on Delete Data:

Click image for larger version. 

Name:	_3.jpg 
Views:	41 
Size:	39.0 KB 
ID:	51740

When you have Settings open also check your Flash is up to date, click on Updates tab then Check Now:

Click image for larger version. 

Name:	_4.png 
Views:	41 
Size:	60.7 KB 
ID:	51741

Hope it helps!!