Itunes pops up on my pc trys to sync then freezes!

HELP!

I have iphone4S and ipad2.
When set up IOS5 I checked off syncing thru wifi.

Now itunes pops up constantly on my PC, tries to sync the phone and ipad, even though I don't have them plugged into to a power source, then it freezes

I tried re installing itunes, it didn't help.

I finally synced the phone and pad and UNCHECKED the wifi syncing, and the problem disappeared.

Anyone have similar problems? Apple had no clue (after I waited on line for nearly an hour yesterday.)

Lesson learned: DON'T BY A NEW DEVICE UNTIL THE NEW OPERATING SYSTEM HAS BEEN OPERATING FOR A FEW WEEKS!!!!!