ETHRIVRAV,
The infamous 137 GB XP limit problem....
1) Start->Run->diskmgmt.msc . Disk managment opens now. If there is any unallocated free space , try to format it and you can see the full drive
2) There might be a tool available to enable large disk in XP, check the Maxtor website
3) Install service packs, to enable large drives in XP