OSX Kernel Panic on unplugging USB

If I unplug the USB cable while the serial monitor window is open I get a kernel panic - not always, but mostly. Looks like the FTDI driver.

Any thoughts on stopping this happening would be much appreciated.

Here's the start of the crash report

----Interval Since Last Panic Report: 146962 sec
Panics Since Last Report: 1
Anonymous UUID:

Wed Jan 12 20:33:08 2011
panic(cpu 1 caller 0x2aab55): Kernel trap at 0x00000000, type 14=page fault, registers:
CR0: 0x8001003b, CR2: 0x00000000, CR3: 0x00100000, CR4: 0x00000660
EAX: 0x14288b00, EBX: 0x1776e440, ECX: 0x625d0001, EDX: 0x17aa9000
CR2: 0x00000000, EBP: 0xaac4bef8, ESI: 0x1780d324, EDI: 0x1780d300
EFL: 0x00010202, EIP: 0x00000000, CS: 0x00000008, DS: 0x00000010
Error code: 0x00000010

Backtrace (CPU 1), Frame : Return Address (4 potential args on stack)
0xaac4bcf8 : 0x21b50c (0x5d4438 0xaac4bd2c 0x223974 0x0)
0xaac4bd48 : 0x2aab55 (0x59623c 0x0 0xe 0x596406)
0xaac4be28 : 0x2a09a8 (0xaac4be40 0x0 0xaac4bef8 0x0)
0xaac4be38 : 0x0 (0xe 0x15e80048 0xaac40010 0x290010)
0xaac4bef8 : 0x54ca57 (0x17aa9000 0x1776e440 0x1 0x0)
0xaac4bf48 : 0xaadc6dca (0x1780d300 0xaadc970c 0x0 0x0)
0xaac4bf78 : 0x22fd09 (0x17aa9000 0x0 0xaac4bfc8 0x227966)
0xaac4bfc8 : 0x2a06cc (0x863ea0 0x0 0x10 0x12cfcb00)
Kernel Extensions in backtrace (with dependencies):
com.FTDI.driver.FTDIUSBSerialDriver(2.2.14)@0xaadc5000->0xaadccfff
dependency: com.apple.iokit.IOUSBFamily(4.1.7)@0x13ec000
dependency: com.apple.iokit.IOSerialFamily(10.0.3)@0x1580000

BSD process name corresponding to current thread: kernel_task

Mac OS version:
10J567

Kernel version:
Darwin Kernel Version 10.6.0: Wed Nov 10 18:13:17 PST 2010; root:xnu-1504.9.26~3/RELEASE_I386
System model name: MacBookPro5,2 (Mac-F2268EC8)

System uptime in nanoseconds: 30336161507740
unloaded kexts:
com.apple.driver.AppleFileSystemDriver 2.0 (addr 0x1245000, size 0x12288) - last unloaded 93408755688
loaded kexts:
com.FTDI.driver.FTDIUSBSerialDriver 2.2.14 - last loaded 29749285473531
com.google.filesystems.fusefs 2.0.3
com.vmware.kext.vmnet 3.1.2
com.vmware.kext.vmioplug 3.1.2
com.vmware.kext.vmci 3.1.2
com.vmware.kext.vmx86 3.1.2
com.apple.filesystems.smbfs 1.6.5