minimum requirements?



I have been reported of manfunctioning plotting facility of wxmaxima 
0.6 and 0.7, with maxima 5.10: plot commands are correctly executed, 
yet the gnulot window is not displayed or the inline graph is shown empty.
Sometimes the Y range cannot be changed.   
PCs are pentium 3 or 4 with 128 mb ram. Is it enough to run wxmaxima? 


thank you 

Pol