R help - Nov 2011 - .jinit() : Cannot create Java virtual machine

Dear all,
    when using .jinit() I get the message .jinit() : Cannot create Java 
virtual machine (-1).
The details:
I am using the Dismo package.Dismo has a function 'maxent' that
communi-cates with this program(MaxEnt).MaxEnt is available as a stand-alone
Java program.
It is normal when I execute the command :    "jar <-
paste(system.file(package="dismo"), "/java/maxent.jar",
sep='')" when I execute the function:        xm <-
maxent(predictors, pres_train, factors='biome').The R show the
error(Cannot create Java virtual machine) .  Java is correct installed .
My R version is 2.14.0.
 I don't know how to solve the problem. Will you help me out?
Thank you,all. 
                          Yuwei Wang
Cnic,CAS
          

	[[alternative HTML version deleted]]

Dear all,
    when using .jinit() I get the message .jinit() : Cannot create Java 
virtual machine (-1).
sessionInfo() R version 2.14.0 (2011-10-31)Platform: i386-pc-mingw32/i386
(32-bit)locale:[1] LC_COLLATE=Chinese_People's Republic of China.936 [2]
LC_CTYPE=Chinese_People's Republic of China.936   [3]
LC_MONETARY=Chinese_People's Republic of China.936[4] LC_NUMERIC=C          
[5] LC_TIME=Chinese_People's Republic of China.936    attached base
packages:[1] stats     graphics  grDevices utils     datasets  methods   base   
other attached packages:[1] maptools_0.8-10 lattice_0.20-0  foreign_0.8-46 
rJava_0.9-1    [5] dismo_0.7-11    raster_1.9-41   sp_0.9-91      loaded via a
namespace (and not attached):[1] grid_2.14.0> The details:
I am using the Dismo package.Dismo has a function 'maxent' that
communi-cates with this program(MaxEnt).MaxEnt is available as a stand-alone
Java program.
It is normal when I execute the command :    "jar <-
paste(system.file(package="dismo"), "/java/maxent.jar",
sep='')" when I execute the function:        xm <-
maxent(predictors, pres_train, factors='biome').The R show the
error(Cannot create Java virtual machine) .  Java is correct installed .
My R version is 2.14.0.
 I don't know how to solve the problem. Will you help me out?
Thank you,all. 
                          Yuwei Wang
Cnic,CAS
          

	[[alternative HTML version deleted]]