It is still there!!!!
You export ur artwork to tiff format. It will open this time in photoshop (after installing SP1)....but when u again try to save that file in tiff format u'll see that it has LZW compression.
No No No....I did't select any compression while exporting and re checked this many times.
Pls don't try to teach me how to export files from corel.....give me solution as this compressed file won't work on my RIP station