IPhone vanishes from iTunes

In the last couple of weeks I have been having a hard time syncing my iPhone 3GS with iTunes. When I place the phone in the dock it starts charging right away, but sometimes it doesn't show in the itunes device list. Other times it does show for a few moments and then vanishes, without any error message, even half way through a sync operation. I have to remove it from the dock and place it again several times, until I finally get it to completely backup and sync. I have iTunes 9.0.3 and the iPhone has OS 3.1.3.
Is anybody having the same problem?
Thanks.

Thank you for your help. Yes, I had the dock connected through a USB hub. I have been testing different connection setups and I now believe that the problem is in the USB hub (and not the dock), although it doesn't happen every time. Probably some conflict with some other device, but I can't say which one. Still, when connected directly to the macMini USB port works without any problem.
Thanks again.

Similar Messages

Maybe you are looking for

  • HP laserjet won't print.

    We have the latest updates to Snow Leopard on a 27" IMac. We have had this printer (CP2025dn), USB, for a couple of years. All of the sudden The print job is sent, the green light on the printer flashes as usual, Then the error light flashes and the

  • Qty Differene problem in MMBE & MM03

    dear gurus For certain material when i am Checking Quantity of the material for Depo that has been created  .in MM03 transaction in accounting view ,the Quantity is less than what i see in MMBE transaction for the same material and for the same depo.

  • Plot function and Interpolate Plz Help!!!!

    Im trying to obtain a plot from  the following function ( see attached file)  a I-V curve and then from the plot i wanna determine values for "I" when  values of V are specified. I wanna do this without using cursers but programmatically.(possibly us

  • Problem with the Menu Button in the dashboard

    Hello Everyone, This is my first post to SAP Forum. I have developed a Dashboard in ALV and i have used some buttons for the further processes on the ALV. I have used a Menu Button and Declared it in Handle_Menu_Button method of the Class and in the

  • Trimming long clips?

    (I should know this but) When I bring a long clip into the Viewer I cannot perform precise trimming because the Viewer's timeline is hopelessly coarse; slight movement of the mouse makes 30-90 second leaps. I can drop the clip down into the timeline