Background: 17" MBP, 4gb ram, 2008 edition. Upgraded to 10.5.7 upon release. Problem: when browsing in either Snafuari or Firefox, I see the little 'wheel' spinning next to the pointer...even when I am just reading a page. This NEVER occurred with regularity it is happening now. Anyone else having issues like this? Also, the system 'seems' sluggish. Again, is it just me?