For some reason I now cant delete songs from my iphone 4 (latest firmware) 
When I try to delete using DEL button nothing or right clicking to see delete option, no option.  The little 'check box' at the start of each song is greyed out so I cant select that either.

My itunes seems to be bit screwed up as when i go to the 'itunes store' the loading bar will get half way and stop, nothing will happen just a grey screen. Cant load songs onto it either.


I'm using the latest itunes on win7 64