Visual C++ Runtime Error

Hi,

I've recently noticed that while browsing webpages i get the following error being displayed,

At the same time the following error is logged in the Application log under Event ID 100,

Faulting application name: swi_service.exe, version: 3.2.101.0, time stamp: 0x510feb76

Faulting module name: swi_service.exe, version: 3.2.101.0, time stamp: 0x510feb76

Exception code: 0x40000015

Fault offset: 0x00070138

Faulting process id: 0x9e8

Faulting application start time: 0x01ceb6007f08e660

Faulting application path: C:\Program Files\Sophos\Sophos Anti-Virus\Web Intelligence\swi_service.exe

Faulting module path: C:\Program Files\Sophos\Sophos Anti-Virus\Web Intelligence\swi_service.exe

Report Id: db661603-2436-11e3-a189-005056c00008

The Web Intelligence Service then seems to restart.

Is this a known issue? If not, is there anything i can do to resolve this?

Thanks,

Gareth