Hi All
Many thanks for the reply - I am very very much an amateur when it comes to diagnosing computer problems so please forgive if I have left specifications out or can't explain myself fully! Your help is very much appreciated!
Here are my specs:
MBP 15in, late 2011
Processor 2.2 GHz Intel Core i7
Memory 16 GB 1333 MHz DDR3
Graphics Intel HD Graphics 3000 512 MB
Software Mac OS X Lion 10.7.5
I wanted photoshop to have heaps of RAM to use, so I changed from 4GB to 16GB (computer seemed to run fine for over 6 months).
Thanks again if anyone can suggest a reason for the problems and a solution too!
throAU - any quick way to test if the GPU is broken?? Thanks.