Using Win7 64bit. Happens when i try to do a custom scan. I get the "Eset GUI has stopped working" message and the tray icon disappears shortly. When i restart Eset from the start menu, the custom scan is already running. Under normal conditions when i stop a custom scan and try to do another custom scan, the previous custom selections are still there. Now i noticed when i do that, the new custom scan window is the default one, the previous selections are not memorized, and the gui crashes if i make a selection and start the scan. An antivirus that crashes is quite rare... This happened after upgrading to version 5 a couple days ago. The problem is intermittent too, doesnt happen everytime.