I have two AD groups group1 and group2, both of them having two users each >> group1 > groupuser1, groupuser2 and group2 > groupuser3, groupuser4.
I have a custom list in MOSS named as performanceschedule.

I need to create view(s) that if a user from groupuser1 views the list, he can view the items created by himself and his groupfellows and not the items created by the users of the other group(s).

I tried to make a filter but couldn't make a proper filter.

One possible solution part can be that if the querystring is involved, but its not necessary