Essential System Software...what is this
If you feel it's safe to reinstall 'Essential System Software', can you tell me what this does and how it affects my current applications/keychains/permissions/etc?
The original problem...My HP designjet 90 hasn't worked since installing Snow Leopard/this is a known problem. A fix was to have come with OS 10.6 update. Still not working. My attempt is to delete library/printer folder and then to reinstall from Disk, and then run update again. Anything I may be missing?
iMac11,3 Intel Core i5 2.8, Mac OS X (10.6.4), 12 GB memory Photoshop CS 4 v.11.01 Aperture 3.01