hard drive compatibility vista xp

I have a secondary harddrive that i use with my XP machine to store files like pictures, documents. It was my "g" drive.
I create a new machine from scratch and then decided to add the old secondary hard-drive to my new vista machine (it was a 'slave' on XP). When I start up Vista it states that the drive is now a 'dynamic' disk and cannot access the drive. there is a red exclaimation mark on the drive - when i go to disk management. the only way to access the drive is to reformat all the contents:
- is ntfs different on Vista vs XP? - Is there a setting I should use - is it trying to map the same letter drive designation from XP to Vista?
Any help would be appreciated.

I have been able to bring over 2 dynamic disks from XP into Vista.
I DID get the error that I would lose all data, but I did not lose data. THAT WAS MY EXPERIENCE, I DO NOT GAURANTEE THAT IT WILL WORK FOR YOU!!! So don't come after me if your machine hoses your drive.
"Deepak Shenoy" wrote in message

I have a secondary harddrive that i use with my XP machine to store files like pictures, documents. It was my "g" drive.
I create a new machine from scratch and then decided to add the old secondary hard-drive to my new vista machine (it was a 'slave' on XP). When I start up Vista it states that the drive is now a 'dynamic' disk and cannot access the drive. there is a red exclaimation mark on the drive - when i go to disk management. the only way to access the drive is to reformat all the contents:
- is ntfs different on Vista vs XP? - Is there a setting I should use - is it trying to map the same letter drive designation from XP to Vista?
Any help would be appreciated.