Back Up Screw Up...

[Turnamental]

Ok this is a weird one....

I backed up my iphone 4 and swapped to another iP4.
On new one, when I go to "restore from backup" it only shows my GF's backup in the drop down box...

But when I dig into itunes or go to prefs>devices it shows my BU right there plain as day.

Anybody got any ideas???

EDIT: This occurs on BOTH my Windows 7 and Hackintosh Mac hard drives... Which leads me to believe it's either phone or BU... Not itunes

Edit 2: Ok.... So it's the phone....

If I plug my GF's phone in and right click "restore from BU, my BU shows up in the drop box... WTF?

Edit 3: It's not letting me restore a BU that was saved on iP4 with 4.2.1 to an iP4 with 4.1
Maybe Apple's doing?