Ditto here but it's done this since I started using it roughly 3 years ago.  I always use the most current version.  It's rather annoying.

OS's it's done this on (services packs always up to date).
Windows XP
Window Vista
Windows 7
Windows XP used in VM on Mac OS 10.5

Other applications open
Firefox (probably always)
Dreamweaver - often
Photoshop - often
Excel - occasionally
Windows Explorer occasionally
Jing -  occasionally
Textpad - occasionally
textwrangler - (when I was on Mac) - occasionally.



And it even did it while I was writing this!!!  Error received:

Problem signature:
  Problem Event Name:    BEX
  Application Name:    IETester.exe
  Application Version:    0.4.8.0
  Application Timestamp:    4d6608ba
  Fault Module Name:    7shtml.dll_unloaded
  Fault Module Version:    0.0.0.0
  Fault Module Timestamp:    46c10b41
  Exception Offset:    54341089
  Exception Code:    c0000005
  Exception Data:    00000008
  OS Version:    6.1.7601.2.1.0.256.4
  Locale ID:    1033
  Additional Information 1:    0a9e
  Additional Information 2:    0a9e372d3b4ad19135b953a78882e789
  Additional Information 3:    0a9e
  Additional Information 4:    0a9e372d3b4ad19135b953a78882e789

Read our privacy statement online:
  http://go.microsoft.com/fwlink/?linkid= … cid=0x0409

If the online privacy statement is not available, please read our privacy statement offline:
  C:\Windows\system32\en-US\erofflps.txt


Current System info:

Windows 7, service pack 1
Intel(R) Core(TM) i5 CPU Processor
8.00 GB RAM
64-bit OS (this also occurred on 32 bit)