Itunes keeps syncing my iphone4s when no options are selected to do so. Ipod appears to be fine. I have latest ios version on phone. Windows user pc. Any help would be appreciated

Question

I updated to the new itunes software on my windows pc.  I plugged in iphone 4s to transfer music across.  itunes then started wiping all other music, but still showing songs on phone etc.  Playlists just scrolled through as though nothing was there.  Summary on phone still showed music!
I manually manage music on the phone myself, never ticked syncing etc.  Wiped all the music off phone, and started again.  This worked once, and now has reverted back to showing less songs on the phone, but now appears to be re-adding the songs again when I've just connected it to add more music.
itunes didn't appear to have a problem when my ipod was connected.  I'm loathed to reconnect now, as I have my entire music collection on there, and do not want that to be half deleted etc.
If anyone can help, that'd be appreciated.

Answer 1

hiya!
I'll try another cable, but I think I see a trip to the apple store in my near future. =(
take your cable in to be checked, too.
i was a little mysterious in my post earlier. but what i'm wondering about is a weird silent version of one of these errors:
iTunes displays a -69 error when syncing iPod
-36 or "Disk cannot be read from or written to" error syncing iPod in iTunes
... i have seen a case where it turned out that a corrupt song file was causing the entire computer (not just itunes) to freeze up in the way you're describing (instead of returning a -69 or one of the other error messages).
what i think might be going on in these cases is that something strange happens during the "error reporting" phase of proceedings, and Windows gets desperately confused and goes into a sulk.
given that a bad cable can cause either the -36 or the -69, it's plausible that that could cause the silent version too ...
(this is all very hypothetical and conjectural, though. i could very well be barking up completely the wrong tree.)
love, b