Error by opening my mail database...PANIK

When I open my mail database version 6.01 CF1, I have 2 windows which open, one in version 5 and the other in version 6.

Why?

I hade a fixup, an updall but nothing always 2 windows which opens .

Subject: Error by opening my mail database…PANIK…

I had the same problem in version 6.5.1,I replaced design compact, updall it did not help.

so i deleted bookmark.nsf and reopened notes, it worked after that .