Hello, I have a serious problem with Photoshop cs6 during the drawing with a large number of forms (about 30 ...).
Appear in drawing the colored squares, lines and other defects, randomly placed in the drawing.
If I save the image, close and reopen itthe drawing is ok.
Can you help?
My system is:
Mac OS X 10.7.5
Intel Xeon quad-core "Nehalem" a 2,8 GHz
12 GB (3 x 4 GB)
HD Serial ATA da 1 TB a 3 Gb/s e 7200 giri/min
ATI Radeon HD 5870 1 GB
That screen capture looks like it may be a video driver problem. Try turning off GPU support in you Photoshop Preference or use the advance setting and select basic support. See if thing change.. Just a guess on my part.