Hi,
I am new to this forum but not to Macs have been using a
since 2007.
A few days ago an issue started where the image of the previous application freezes on the screen and/or black boxes appear around an application this is happening at random times.
I am running Snow leopard (10.6.2), have a 120gb harddrive and 1.5 gb ram.On a macbook 4.1.
I have done a permission repair and verified the Harddrive successfully as well as the software is up to date.I also reset the PMU.
I have done a hardware test that run successfully which makes me think it is my graphics card?
I read suggestions about voiceover being turned on but this is not the case either.
Can you please help me
!
Cheers,
maril1111
I am new to this forum but not to Macs have been using a

A few days ago an issue started where the image of the previous application freezes on the screen and/or black boxes appear around an application this is happening at random times.
I am running Snow leopard (10.6.2), have a 120gb harddrive and 1.5 gb ram.On a macbook 4.1.
I have done a permission repair and verified the Harddrive successfully as well as the software is up to date.I also reset the PMU.
I have done a hardware test that run successfully which makes me think it is my graphics card?
I read suggestions about voiceover being turned on but this is not the case either.
Can you please help me
Cheers,
maril1111