Command antivirus - problems using outlook

Hi - sorry if this is in the wrong section.

I have a system runng windows xp and i have installed CSAV (Command Software's Anti-Virus program). Latest version: 4.90 and i have updated the definition files. And it seems to do the job.

However there seems to be a bug, when i use outlook and i try to edit the signature, my system will crash and i get the bsod:

Stop code: 0x000000C2 (0x00000040, 0x00000000, 0x80000000, 0x00000000)

Now the signature function works in safe mode and if i uninstall the antivirus software. But it wont work with the AV software.

Has anybody else come accross this issue?

Has anybody got any ideas?
There is no patches or updates for the software....

Thanks

Allan confused