Lotus client crashes when opening attachment in a document

Some users in my company are complaining that their notes client crashes when they try to open attachments in a document. They can detach attachments to desktop and open it fine from there, but when they try to open it directly their notes crashes. Has anybody faced similar issue? Any suggestion/solution would be much appreciated.

Thanks,

Vishal

Subject: Could it be related to your desktop virus scanning software?

Do you collect the NSDs after the crash?