I have a scheduled backup set for my C: and D: partitions. I have been noticing a trend that the incremental backup size is getting larger each time. I scheduled backups for C: once/wk and D: 2x/wk. Here's the data: Initial C: backup 17,132,360 KB; incremental 1: 873,059 KB; incremental 2: 1,556,224 KB Initial D: backup 30,935,384 KB; incremental 1: 121,054 KB; incremental 2: 493,958 KB; incremental 3: 662,215 KB; incremental 4: 892,554 KB Is this happening to everyone, and should it? I thought the incremental backup is just supposed to contain the changes since the last backup. I haven't been doing anything to explain such massive changes. I am using TI8. I started with trial version 771, then download version 763 then udate 771, then 773, the most recent pre-release. Hardware: ASUS A7N8X-E Deluxe motherboard with SiI 3112a SATA RAID controller with 2 SATA drives in RAID-0 configuration, in turn partitioned into C: and D: partitions. Backup on USB2 hard drive.