I jsut set up Time Machine yesterday, saving to a USB-connected external hard drive. I disconnect this HD when I take my laptop home from work at night. This morning, after reconnecting and TM doing a scheduled backup, now I have two HD icons on my desktop, both labeled Time Machine Backups. One says it was created at 9:35 a.m. yesterday and modified at 12:02 p.m. The other says it was created at 9:35 a.m. yesterday and modified at 9:52 a.m. yesterday. That one shows very little disk space used, while the other one shows about 22 gb of space used. Yesterday, I had a HD icon and a folder icon on the desktop, both marked Time Machine Backups. What changes should I make?