some error; but why ? something to do ?

I can't read divx, i've got This error :


BSPlayer v0.86.493, Unhandled exception at EIP: 1D1C4E86
If you click 'Close' application will be terminated.
Please report this info to the author with description what were you doing.
Access violation at address 1D1C4E86 in module 'MMSwitch.ax'. Read of address 00000000
EAccessViolation
, 0x004B48EF, 0x004B4B69, 0x004520BF, 0x0044972A, 0x77D37AD7, 0x77D3CCD4, 0x77D156B6, 0x77D15A71, 0x00449639, 0x00437813, 0x0044C1EF, 0x0043757B, 0x0044972A, 0x77D37AD7, 0x77D3CCD4, 0x77D145BD, 0x77D147D4, 0x77FA4DA6, 0x0044C1EF, 0x0043757B, 0x0044972A, 0x77D37AD7, 0x77D3CCD4, 0x77D145BD, 0x77D147D4, 0x77FA4DA6, 0x00434EB8, 0x0044C1EF, 0x00434CFF, 0x004374DC, 0x00437547, 0x0044C1EF, 0x00434CFF, 0x00433C69, 0x004C62AF, 0x77E614C7

Bytes at EIP: 8B 08 FF 51 10 85 C0 7D 11 EB 5D 33 C0 8D 7D F0 AB AB