I'm just GUESSING - but worth checking:
- can you control the resolution of screen captures? They might be getting taken at huge file size - thus "too big" for ecf, or the "no room" errors. Screen capture doesn't have to be full resolution...
- Since you just switched to using a browser, ARE YOU "SIGNED IN"?? If it's saying you don't have permission, it might be that you're not logged in, and thus, you're a "guest" with no permission beyond new members stuff...