before all make a copy of all your show.
MAKE A COPY OF ALL YOUR SHOW !!!!!!!!
as you made the copy from your number show what will take a little time.
you check well that you have all to copy.
in general the folder is there
c:/Document and setting/YOUR NAME/application data/vghd/
copy then the folder VGHD, have a look in if you have DATA and MODELS folder.
name of destination exemple
d:/VIRand before uninstall move the folder original vghd.
uninstall and reintall, the program ask you where you place the data, here you write the location of your copy on the new hardrive.
test and if all is ok, you can remove the ancien folder of vghd, but try to make a copy of security.
take your time
have good day and lot of luck.
ps if you uninstall whihout copy is take several time for restaure all your show like, 7 minutes the show for the quick reference then (7*number show) minutes for you.
and 15 at 25 minutes the show for the bad reference.