Problem at EPS when duplicate object w/ gradient

Question

Hey, check that: In Illustrator CS5 I drew a square, applied gradient, duplicate and rotate it. Then I saved as EPS (Illustrator 8) and open in Corel. There is an error as the fill (gradient) had not been duplicated and rotated along with the path of the object.
Illustrator CS5
EPS Illustrator 8 open at Corel
I know i can expand gradient into steps or mesh but what puzzles me is that recently bought a file at iStockphoto whose gradient is not converted into steps or mesh and it works!
Open the file purchased with the element gradient and repeat the same process as described above. When I open it at Corel, the gradient is duplicated and rotated.
I thank the attention of anyone who can help me with the solution or suggestions.

Answer 1

In the market I work, most people uses Corel. And as I have intent to distribute my design, I need to generate a file that is mostly compatible with other editors.
The problem about expanding gradient into objects is that I dont like the idea of dividing the gradient into hundreds of objects. The gradient mesh uses Clipping Path while the file I bought from iStockphoto is a path (apparently) common.
I am looking for the solution to create linear gradients compatible with other editors without having to divide the shape into pieces or use Clipping Path. As i saw it's possible, I intend to find out how