cannot connect my hard disk to mac

[Lena0609]

i just bought my macbook recently and i couldnt connect my harddisk to it...

But it is connect to microsoft when i open the boot camp.

I tried to connect it with other lap top but seem like no problem with connecting it .

What can i do?

[Satcomer]

Do you mean an external Firewire or USB disk? Did you check Finder's Preferences (click on the top left Finder name in the menu bar) and make sure there is check marks for hard disks checked.

[Lena0609]

i mean external hard disk. the hard disk checked.. when i connect t when normal USB thumb drive, it's ok.. just that particular external hard disck can not be connected.