Hello! I got my first GPS recently, a Garmin GPSmap 60CSx, and am now trying to create maps for it via mkgmap, but am having problems. I'm running Debian Lenny, with mkgmap-r1600 (current version) and Sun Java 6. My machine is 32-bit AMD with 2GB memory. I managed OK (using an older mkgmap version) to convert and upload a few small city maps (Dublin, Barcelona, etc.) but can't manage (using either mkgmap version) a bigger map, all of Ireland, which I got from Geofabrik (http://download.geofabrik.de/osm/). The .osm file is 318MB in size. When I run mkgmap (with no options) I get an error, which starts as follows: java.lang.OutOfMemoryError: Java heap space at java.util.Arrays.copyOfRange(Arrays.java:3209) at java.lang.String.<init>(String.java:216) at com.sun.org.apache.xerces.internal.xni.XMLString.toString(XMLString.java:185) at com.sun.org.apache.xerces.internal.util.XMLAttributesImpl.getValue(XMLAttributesImpl.java:537) at com.sun.org.apache.xerces.internal.xinclude.XIncludeHandler.processAttributes(XIncludeHandler.java:2030) at com.sun.org.apache.xerces.internal.xinclude.XIncludeHandler.startElement(XIncludeHandler.java:907) at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.scanStartElement(XMLNSDocumentScannerImpl.java:400) I then used splitter (current version) to split the map file, which resulted in a single file being produced, 142MB after unpacking (less than half the size of the original!?), and submitted that to mkgmap, but it bombed out again (though with a different error). Can anybody suggest what I might need to do to get it working? Thanks very much. Tony.