I just updated to iTunes 10.6 from 10.5.3 on Snow Leopard. Zero issues on the old version and on Mac running Lion. Nothing else changed before the update. Now iTunes would crash shortly after startup. Crashed so many times that it is not usable. A google search reveal a long support thread on Apple Support Forum. The only fix was to "downgrade" back to 10.5.3 which Apple makes it a B***ch to do. I had to search the web for the file. Apple removed the old iTunes file so you can't get it from a trusted site. WTF! Apple. Is this the first sign of Apple ******* up without Steve at the wheel? iTunes is bread and butter and for it to not work on SN is a HUGE flaw. Anyone else has the same issue? Don't update if you are running anything other than Lion.