I have a desktop running Windows 7 I have a partition of 750 Gig in size, I want to map it so I can use the info in it on a Vista laptop. However it won’t let me access it/map it from the Vista PC. Although it will let me share other partitions such as my image partition which is much smaller. I have 2 1TB drives & two partitions per drive. Is there a limit in size for a mapped drive & if so what is it. I have searched the web to no avail.