recently upgraded to mirc6.1

now i seem to have a few problems with a script causing mirc to crash!
ive narrowed it down to this part of the script, which is hardly anything taxing

if ($dialog(viewer)) dialog -x viewer
dialog -md viewer viewer
and I get the following error msg, which closes mirc on OK:
and thats about all i can give... :\
:edit: it seems to happen when im handling .pngs with $pic etc.. as it seems fine with .jpgs
