I have on my pc 2 times WinXP pro installed (C-drive en E-drive)

Under winxp on the E-drive i can read my usb stick (1GB perfect)
However on my C-drive: explorer lists a removable disk and than explorer
hangs (does not respond)
With a 32MB or 128MB stick on the same USB port is no problem , i can read
them both.
But for some reason the 1GB stick hangsup my explorer

What can i do?