Unable to drop dbspace

We are running Informix 7.23.uc6 on AIX 4.1.5 for an SAP system. Through SAP utilities I moved all tables from its original dbspace to an intermediate dbspace. At this point I wanted to drop the original dbspace and recreate it on different disks. When I try to drop the dbspace, I get the error that the dbspace is not empty. This is not true. The dbspace is 100 MB in size, but my space reports and onstat -d are showing that there is 102 MB free. I also ran check against the reserved pages and found nothing. Below is a copy of the related oncheck -pe for this dbspace. If anyone has any ideas please let me know. Thanks in advance, John Paul DBspace Usage Report: psapprot Owner: informix Created: 01/21/98 Chunk: 11 /informix/E01/sapdata/physdev5/data5 Size Used Free 12500 103 12397 Disk usage for Chunk 11 Start Length ------------------------------------------- --------- --------- OTHER RESERVED Pages 0 2 CHUNK FREE LIST PAGE 2 1 TBLSPACE TBLSPACE 3 50 FREE 53 6362 TBLSPACE TBLSPACE 6415 50 FREE 6465 6035 Chunk: 29 /informix/E01/sapdata/physdev5/data5 Size Used Free 12500 -637 13137 Disk usage for Chunk 29 Start Length ------------------------------------------- --------- --------- OTHER RESERVED Pages 0 2 CHUNK FREE LIST PAGE 2 1 FREE 3 12497 ^L