graphical glithces black rectangle

[Irawan]

I have some problem with my desktop graphic screen . When I point at the icon at sidebar it is appear a black rectangle. When I open the lens the backgroun getting grey. I try to switch the configure remofing lens blur and the grey is disappeared but the black rectangle problem is still occur.
I give the attachment for the appearance
I have tried change to another version of nvidia driver but I have no luck

------------- VIDEO DRIVER INFORMATION ------------- Video Driver: nvidia Driver Version: 331.20 ------------- HYBRID GRAPHICS CHECK ---------------- Graphics Chipset: NVIDIA (10de:0e22) Loaded DDX Drivers: modesetting, fbdev, vesa Hybrid Graphics: no

[Irawan (go-irawan)]

Update for the information .
I am using Ubuntu 14.04.1
I get this problem after upgrading to 14.04.1 . I never get this issue in 13.10

the result of lshw command

*-display
       description: VGA compatible controller
       product: GF104 [GeForce GTX 460]
       vendor: NVIDIA Corporation
       physical id: 0
       bus info: pci@0000:01:00.0
       version: a1
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress vga_controller bus_master cap_list rom
       configuration: driver=nvidia latency=0
       resources: irq:46 memory:f4000000-f5ffffff memory:e0000000-e7ffffff memory:e8000000-ebffffff ioport:6000(size=128) memory:ec000000-ec07ffff

Driver Nvidia 331.38