CorelDRAW X4 showing Corel icon instead of file preview

so, somewhere along the line, i lost my preview capabilities for my Corel X4 files in windows explorer.
after scouring the internet for a solution, i am here...

i have tried uninstalling, no good. i even tried uninstalling and reinstalling the corel windows shell extension file.
hopefully someone knows how to fix this issue!!
thanks in advance :)