Others may have encountered this problem before, but I found this copy paste problem in Flash(Flash CS3) for the first time. Flash magically rotates and inverts the images copied by the system clipboard from MSPaint. Here are the steps how to produce it.
1. Take a print screen of your desktop by pressing Print-Screen button.
2. Open MSPaint by writing command in your command promt or by manually opening it.
3. Paste the print screen element by (Ctrl+V).
4. Now again copy -press (Ctrl+c).
5. Open Flash and paste by (Ctrl+v)
See the magic now. The image is inverted.
Cropped screen shot of google home page
Is not this amazing? I would say it a bug- but not always(if i want my image to inverted&rotated -:)).