Hello all, I hope this is the correct forum for this problem - please point me the right way if not. I'm developing a Windows application using Delphi 6, talking to the Windows version of PostgreSQL. I have a master-detail relationship between two tables: Delphi implements this using a nested dataset in the master dataset. When I try to open this dataset, however, I get the following error: "Access violation at address 63104AD0 in module 'libpq.dll'. Read of address FEEEFEEE." I'm using version 8.0.1 of PostgreSQL, running under Windows XP Pro on my laptop, and libpg.dll is version 8.0.1 also. Anyone seen this before? --Ray O'Donnell. ------------------------------------------------------------- Raymond O'Donnell http://www.galwaycathedral.org/recitals rod@xxxxxx Galway Cathedral Recitals ------------------------------------------------------------- ---------------------------(end of broadcast)--------------------------- TIP 3: if posting/reading through Usenet, please send an appropriate subscribe-nomail command to majordomo@xxxxxxxxxxxxxx so that your message can get through to the mailing list cleanly