So I spent 2 days and swapped 1 phone to realize that I could not complete upgrade to 4.5 on Curve 8330 due to Service Pack 3 on my system.
What was happening is that SP3 does not detect some of the hardware of the blackberry, driver issue!
I've seen this on other units (i'm pc tech by day). Say audio won't load on a computer, pull SP 3 and audio driver is good!
SO I loaded 4.5 on my macbook running XP and SP2, loaded fine No problems!
I was about to chuck this thing, I tried it all. JL_cmder, /no vjm, etc...etc...
Maybe this could help someone!