I am having the same problem. When I use my 1 GB Kingston DataTraveler USB stick, everything works fine. However, I also have a 100 GB external USB hard disk that does not seem to work. I can access the 100 GB drive fine from Mac OS X (Running 10.4.10), and I did not have any problem accessing the 100 GB drive from Parallels 2.5 Build 3214. But now that I have upgraded to Parallels 3.0 Build 4128, the 100 GB drive is inaccessible.
Also, of note, the Windows XP Guest is recording the following errors in the System Event log when I try to connect the 100 GB drive. I must disconnect the 100 GB drive to even launch the Computer Management MMC snap-in, however:
Event Type: Warning
Event Source: Disk
Event Category: None
Event ID: 51
Date: 7/6/2007
Time: 1:43:41 PM
User: N/A
Computer: JMULVEY-VMXP
Description:
An error was detected on device \Device\Harddisk1\D during a paging operation.
For more information, see Help and Support Center at
http://go.microsoft.com/fwlink/events.asp.
Data:
0000: 04 00 68 00 01 00 b6 00 ..h...¶.
0008: 00 00 00 00 33 00 04 80 ....3..
0010: 2d 01 00 00 0e 00 00 c0 -......À
0018: 00 00 00 00 00 00 00 00 ........
0020: 00 00 00 00 00 00 00 00 ........
0028: ce a6 0a 00 00 00 00 00 Φ......
0030: ff ff ff ff 01 00 00 00 ÿÿÿÿ....
0038: 40 00 00 08 00 00 00 00 @.......
0040: 00 20 0a 12 80 01 20 40 . ... @
0048: 00 00 00 00 0a 00 00 00 ........
0050: 00 70 33 82 80 5b 07 82 .p3[.
0058: 00 00 00 00 70 7e 02 82 ....p~.
0060: 00 00 00 00 9f 46 5e 00 ....F^.
0068: 2a 00 00 5e 46 9f 00 00 *..^F..
0070: 08 00 00 00 00 00 00 00 ........
0078: 00 00 00 00 00 00 00 00 ........
0080: 00 00 00 00 00 00 00 00 ........
0088: 00 00 00 00 00 00 00 00 ........