ColdFusion OutOfMemoryError

Help... I'm getting this error at random...

The web site you are accessing has experienced an unexpected error.
Please contact the website administrator.

The following information is meant for the website developer for debugging purposes.
Error Occurred While Processing Request
javax.servlet.ServletException: ROOT CAUSE:
java.lang.OutOfMemoryError: Java heap space`

The error occurred in /_cfc/User.cfc: line 604
Called from /www/_view/layouts/html.cfm: line 633
Called from /www/_view/dspLayout.cfm: line 16
Called from /www/parsed/user.loginform.cfm: line 48
Called from /www/fusebox5/Application.cfc: line 228
Called from /fusebox5/Application.cfc: line 218
Called from /fusebox5/fusebox5.cfm: line 57
Called from /www/index.cfm: line 8
Called from /Application.cfc: line 151


Resources:

* Check the ColdFusion developer documentation to verify that you are using the correct syntax.
* Search the Knowledge Base to find a solution to your problem.

at coldfusion.runtime.UDFMethod.invoke(UDFMethod.java :418)
at coldfusion.runtime.UDFMethod$ReturnTypeFilter.invo ke(UDFMethod.java:360)
at coldfusion.runtime.UDFMethod$ArgumentCollectionFil ter.invoke(UDFMethod.java:324)
at coldfusion.filter.FunctionAccessFilter.invoke(Func tionAccessFilter.java:59)
at coldfusion.runtime.UDFMethod.runFilterChain(UDFMet hod.java:277)
at coldfusion.runtime.UDFMethod.invoke(UDFMethod.java :192)
at coldfusion.runtime.TemplateProxy.invoke(TemplatePr oxy.java:448)
at coldfusion.runtime.TemplateProxy.invoke(TemplatePr oxy.java:308)
at coldfusion.runtime.AppEventInvoker.invoke(AppEvent Invoker.java:74)
at coldfusion.runtime.AppEventInvoker.onRequest(AppEv entInvoker.java:243)
at coldfusion.filter.ApplicationFilter.invoke(Applica tionFilter.java:269)
at coldfusion.filter.RequestMonitorFilter.invoke(Requ estMonitorFilter.java:48)
at coldfusion.filter.MonitoringFilter.invoke(Monitori ngFilter.java:40)
at coldfusion.filter.PathFilter.invoke(PathFilter.jav a:86)
at coldfusion.filter.ExceptionFilter.invoke(Exception Filter.java:70)
at coldfusion.filter.BrowserDebugFilter.invoke(Browse rDebugFilter.java:74)
at coldfusion.filter.ClientScopePersistenceFilter.inv oke(ClientScopePersistenceFilter.java:28)
at coldfusion.filter.BrowserFilter.invoke(BrowserFilt er.java:38)
at coldfusion.filter.NoCacheFilter.invoke(NoCacheFilt er.java:46)
at coldfusion.filter.GlobalsFilter.invoke(GlobalsFilt er.java:38)
at coldfusion.filter.DatasourceFilter.invoke(Datasour ceFilter.java:22)
at coldfusion.CfmServlet.service(CfmServlet.java:175)
at coldfusion.bootstrap.BootstrapServlet.service(Boot strapServlet.java:89)
at jrun.servlet.FilterChain.doFilter(FilterChain.java :86)
at coldfusion.monitor.event.MonitoringServletFilter.d oFilter(MonitoringServletFilter.java:42)
at coldfusion.bootstrap.BootstrapFilter.doFilter(Boot strapFilter.java:46)
at jrun.servlet.FilterChain.doFilter(FilterChain.java :94)
at jrun.servlet.FilterChain.service(FilterChain.java: 101)
at jrun.servlet.ServletInvoker.invoke(ServletInvoker. java:106)
at jrun.servlet.JRunInvokerChain.invokeNext(JRunInvok erChain.java:42)