Originally Posted by Pseudonymous

Im not sure what other tools are laggy, I think liquify might be 5-10 percent slower but where I notice it the most is using the spot healing tools, theres about a 5 second lag. The smaller the image, the less delay but even a very small image, it still lags. The pencil and paintbrush tools seems to be fine but that's probably because they arent that heavy on resources. The spot healing tool seems to be unusable its so slow.

I have been using this program for a long time now and this has suddenly occured, I haven't installed any new programs or windows updates and my hardware seems fine. I ran memory tests, harddrive tests, I swapped video cards and changed video drivers. I even reformatted and installed another copy of CS5.

I have an i7 870 processor, 6gb ram, 500gb 7200rpm hd, Nvidia Geforce GT320 1gb.

Any ideas on what could possibly be the issue?