I'm getting an error dialog popping out every now and then saying "javaw.exe - No Disk" "There is no disk in the drive. Please insert a disk into \Device\Harddisk\DR2".
It started to appear after I assigned some .png images as concept icons and used image nodes in concept editors.
This is reallly really annoying.
Also, at the beginning of the log there's always
2010-01-19 17:49:43,549 [ 1648] INFO - #com.intellij.openapi.vfs.impl.local.FileWatcher - Native file watcher failed to startup.
Using MPS1.1 on WinVista 32bit. Didn't mess up with installation..