Hello, Here's System A MacBook 10.6.7 iTunes 10.2.1 Authorized for iTunes A/C & Signed In All Music & Apps Downloaded and Available Here's System B MacBook Pro 10.6.7 10.2.1 Authorized for iTunes A/C & Signed In All Music & Apps Downloaded and Available My phone iPhone 4 32GB 4.3.1 I have synced the following successfully from System A to System B Bookmarks Contacts Notes Music Now I need to sync my Apps without losing any of the apps, their settings, their data & their folders. Here's what I tried to do and failed Connected iPhone to System B Backed Up iPhone on System B Reset Warnings Restored from Back Up (the new one I made) Selected items in 'Info','Music','TV Shows' & 'Photos' sections individually which merged & erased/synced (music) others Selected 'Apps' and the 'Erase & Sync' warning scared me off How can I do this successfully? Thank you. Update - Fixed All I had to do was select the apps I already had and just sync again. It did say it would do an Erase & Sync, but it didn't erase anything.