Are you exporting it from our server? If so, more than likely its once again size causing the export to time out and send an empty file. If only the data is missing, it's because there's no data in there (I didn't import the demo data). PHPPgAdmin and postgres really seem to struggle on Johnny due to poor performance too. If you were on Tommy, this database would likely work just fine though disk space might be an issue (all our servers offer the same 1GB, though that NAS fundraiser we're holding hopes to eventually increase that). We have postgres 9.x on Tommy, and the server is also significantly faster.