CorelDRAW Graphics Suite X6 :: Transparency And Vector Objects

This is my first post in the Corel forum and I hope I did it all right here:

First Bug ->  In my last contest work  I've tried to embed many transparency effects. While I designing my graphic I've used  (among many others) a transparency effect that named »Behind« (in my German version of CorelDRAW it's named »Hinter«). I've applied that effect to a texture bitmap graphic and it worked correctly so long the bitmap overlaid a vector shape in an ordinary way. But after I include the bitmap into the vector shape (using the vector shape as a Power Clip) obviously the used transparency effect conflict with the anti aliasing function of the vector shape and the smooth margins of the vector shape turned into rough boarders and the vector shape looked like a bitmap in a poor resolution. I guess it is only an indication error in CorelDRAW but for a designer's eyes this bug is very disturbing and should be corrected by Corel!

Second Bug -> Often I use CorelDRAW for vector illustrations and that's why I have to integrate scanned sketches (JPEG format) to build vector illustrations bases of it. Here we have another indication error or better to say a performance problem of CorelDRAW. While I using the sketch image in extended view mode the zoom function of CorelDRAW works correctly and pleasant fast. But if I switch to simple contour mode the performance of zoom mode of CorelDRAW worsens rapidly. The performance of my computer is not the problem with this because my hardware is on a high level and I use an well arranged and clean Windows 7 operating system. It would be nice if Corel is able to fix that problem because it disturbs the work flow enormous and it minishs the fun that I have while I'm using CorelDRAW!