Tip: Layer 3 backgrounds and tides disappear when you hit a message box, so plan your level around that. For example, you can add a sublevel without layer 3 at the start/midpoint, and include your message there.
So I've recently defragmented my 50% full 1.14TB hard disk (running Vista Ultimate) using Auslogics's defragmenter. It also said I have a loads of registry errors (which I haven't yet researched how to fix).
On Virtual DJ & Windows Live Movie Maker I have notifications of not having enough memory or contiguous memory.