I use Graphic Convertor a *LOT*. I use three features more than anything else in the application. The feature hands down that I use the most is "Slide Show". This is where the problem comes in. I get a hundred of pictures in email everyday and after the day is done I go through the pictures using GC slide show(to sort the keep vs trash). This where the problem happens. I use GC to delete the pictures I do not want and I go through the slide show just as fast as I can. After a about 30 minutes into say 2000 pictures I start having delays (LONG delays 10-30++ seconds) and then I get the message from the OS (OSX 10.4.11) File is in use and to try and delete again also just before I see the message I can start feeling delays (of the picture going into the trash) and eventually it grinds to a halt (GC). If I get out of GC completely the problem goes away temporarily and when I go back in its good for say 5 minutes then it is back (spinning beach ball and long delays deleting pictures. This seems to have gotten worse when I got into OSX and now it is just a pain in the a**. I am not on any deadlines per se but what used to take me an hour is now two or more hours. I think the only relevant information is that I run 100 percent cpu busy all the time due to seti and oh yes I have a dual processor. If there are any more items or questions that I can answer I will be happy to. Ed