Some help required with iTunes

[michaelqian]

Hi Guys,

Unfortunately I still don't seem to get the full hang of itunes.

Yesterday I installed an application from my iPad, while it was connected to iTunes. Then when I synced them, iTunes on my PC removed the application from my iPad.

I had to go to File > Transfer my Purchases to make a copy of it in my computer.

Then while the iPad was not connected, I installed 4 more apps. When I connected it to iTunes, all 4 were removed, so I had to go to Transfer my purchases again to make it work.

Did I do something wrong? Maybe changed a setting accidentally?

It used to make a copy of all new apps I got from my iPad to my PC, now it removes them.

Can someone help? I'm scared to connect it now...

Thanks a lot.