Use this config.xml:
<CONFIG>
<UO>
<!-- Your UO Path -->
<MULPATH>E:\UO3D\</MULPATH>
<!-- Rendering Area 4096-->
<MINX>1</MINX>
<MINY>1</MINY>
<MAXX>7168</MAXX>
<MAXY>4096</MAXY>
<!-- Output File (Windows Bitmap) -->
<OUTPUT>output.bmp</OUTPUT>
<!-- Worldfile Patch (_not_ an emu worldfile) -->
<PATCHES>worldfile.dif</PATCHES>
<!-- Detail level: 0 = best, be careful with this!
-->
<DETAIL>5</DETAIL>
<!-- choose Map Numer -->
<!-- 0 - Trammel -->
<!-- 1 - Felucca -->
<!-- 2 - Ilshenar -->
<!-- 3 - Malas -->
<!-- 4 - Tokuno -->
<MAP_NUMBER>0</MAP_NUMBER>
<!-- Cache sizes: lower = less memory usage, more cpu usage -->
<CACHE_ART>15000</CACHE_ART>
<CACHE_TEXTURE>13000</CACHE_TEXTURE>
<CACHE_GROUND>13000</CACHE_GROUND>
<CACHE_BLOCK>110000</CACHE_BLOCK>
</UO>
</CONFIG>
- i increased the cache sizes !!!