http://forum.ntreev.net/grandchase/forums/13.aspxIf you're having a technical issue and it's not an in-game bug (perhaps a problem connecting to the game, patching, or downloading) post it here.enCommunityServer 2008.5 SP1 (Build: 31106.3070)http://forum.ntreev.net/grandchase/forums/thread/242077.aspxThu, 13 Nov 2008 22:45:18 GMT645dad86-7137-4011-be41-73286d58a84d:242077CujoEX0http://forum.ntreev.net/grandchase/forums/thread/242077.aspxhttp://forum.ntreev.net/grandchase/forums/commentrss.aspx?SectionID=13&PostID=242077The game HIGHLY recommends you to use Windows XP 32 bit.&nbsp; Whether if you have Windows Vista, Windows XP 64 bit, or both, you should still be able to play it; though you&#39;ll experience compatibility problems, like GameGuard Error 7c.<br />_____________________________________________________<br /><a href="http://www.mymmogames.net/forum/grand-chase/" target="_blank" title="http://www.mymmogames.net/forum/grand-chase/"><img src="http://persona.mechafetus.com/ic/cakedog.gif" border="0" /></a><a href="http://www.mymmogames.net/forum/grand-chase-tech-issues/27173-common-technical-issues-possible-fixes.html" target="_blank" title="http://www.mymmogames.net/forum/grand-chase-tech-issues/27173-common-technical-issues-possible-fixes.html"><img src="http://i38.tinypic.com/2qss3md.jpg" border="0" /></a><br /><div style="clear:both;"></div>http://forum.ntreev.net/grandchase/forums/thread/241517.aspxThu, 13 Nov 2008 04:47:12 GMT645dad86-7137-4011-be41-73286d58a84d:241517kogoshikun0http://forum.ntreev.net/grandchase/forums/thread/241517.aspxhttp://forum.ntreev.net/grandchase/forums/commentrss.aspx?SectionID=13&PostID=241517is it compatible? i&#39;m reading the other posts but i just got confused whether it is or not @_@<br /><div style="clear:both;"></div>