Error 1406

I'm getting this error while trying to install Coreldraw X3 and X4 in Vista
Ultimate. It does and did work in Vista before I re-imaged my drive. I
have admin rights and priviledges and have cleaned the registry until it's
sterile. All the info I've found on the net hasn't worked such as removing
then setting admin rights again.
Corel has not been helpful though the forum did try a few suggestions. I'm
at my wits end and don't know what else to try.
I appreciate any info anyone can offer at this point.
Thanks