R6025 error when drawing Spiral

Hello

As said in the title, I always get the error "R6025 : pure virtualfunction call" when I try to draw or edit a spiral. I can edit the"esquisse" (I'm french and don't know how to say it in english,perhaps "draft"?) when it is drawn by someone else but I cannotedit the function.
I'm on SW Office 2007 SP3.1 with a floating license and our toolboxis up-to-date.
The other people in my office are able to draw a spiral with thesame floating license. I'm the only one who cannot !!
Can anyone tell me what the problem is?

Thank youSolidworksDrawings And Detailing