Exception every time I start Microsoft Lifecam

For the last week or so, every time I try to start Microsoft Lifecam I get:

LifeCam.exe 2.07.569.0 caused exception E0434F4D at address
7C812AFB (Base: 1000000)

Registers:
EAX=0013EFE4 EBX=E0434F4D ECX=00000000 EDX=00000028 ESI=0013F070
EDI=0016C4F0 EBP=0013F034 ESP=0013EFE0 EIP=7C812AFB FLAGS=00000202
CS=001B DS=0023 SS=0023 ES=0023 FS=003B GS=0000
FPU stack:
4006FB63800000000000 3FFD8000000000000000 4002A000000000000000
00000000000000000000 3FFFCF113E0000000000 3FFF8000000000000000
00000000000000000000 005001ABD010000C3948 SW=0100 CW=027F

Stack dump:
0013EFE0 0013F06C E0434F4D 00000001 00000000 lð.MOCà
.......

The stack dump goes on for another 11350 lines. Is anyone interested?

--
Steve Swift
http://www.swiftys.org.uk/swifty.html
http://www.ringers.org.uk