"Out of Memory Error"

Hi,

My data set is having around 40000 attributes with 1000 positive & 1000 negative examples.

I am using the following operators:-

Root
  TextInput    (TFIDF vector creation)
    StringTokenizer
    TokenLengthFilter
  W-GainRatioAttributeEval
  AttributeWeightSelection
  XValidation
    LibSVMLearner
    OperatorChain
      ModelApplier
      Performance

I am using the Rapidminer GUI. My RAM is of 2GB. OS - Windows Vista

I am getting a heap space error while on operator W-GainRatioAttributeEval.

Is there any way to get rid of this problem?