GDI Error while importing from gHowl???

Dear All,

while importing a 2D point array from Processing, I get this message displayed from the gHowl components "a generic error occurred in GDI+" (please see the attached image)

Actually the data is imported, but the update is very slow, quiet lagging behind what is happening in the Processing window..

Any idea what is this? and what causes it?

Many thanks,

Omar