[I Can't create new folders]

the New Sub Menu is empty

doesn't display the contextual menu for creating folders and other options from it...

can you help me???

 

 

 

 

Operating system:Windows Vista Home Premium (32 bit) Service Pack 2

System root: C:Windows

Available physical memory: 2942 MB

CPU: AMD Athlon 64 X2 Dual Core Processor 4800+

Drive Info:

C: 185.07 GB

D: 15.52 GB

E: 9.00 GB

Internet Explorer: 9.0