Outlook Express won't switch identities, it quits.

[xyxx1]

When I try to switch identities in Outlook Express, it quits. So far my solution has been to open Task Manager and kill the process, then reopen Outlook Express; it opens to the identity that I selected.
Computer:
Operating System Microsoft Windows XP Professional
OS Service Pack Service Pack 1
Internet Explorer 6.0.2800.1106 (IE 6.0 SP1)
Motherboard:
CPU Type AMD Athlon-PECM, 1200 MHz
Motherboard Name Compaq Compaq PC
Motherboard Chipset AMD-760
System Memory 512 MB
BIOS Type Compaq (05/03/01

xyxx1