ext3 runs fsck

Dear All, I got SuSE 8.0 up and running last night. So far, not bad, but one question: Despite the fact that I have the ext3 journaled filesystem installed on every partition - every 20 boots causes an fsck. That was standard procedure with ext2, but it's not supposed to happen with ext3. Any ideas? Is anybody else out there running ext3 and experiencing this? Does ReiserFS and/or XFS do the same? I can say for sure from my Redhat days that ext3 never had to run this check (ext2 did), so I'm puzzled why SuSE is doing it. - Robert Storey