I'm getting similar results. I tried backup up some Windows files this morning to my iDisk and it crashed every time (and was extremely slow when connecting). I'm beginning to wish I had never wasted my time on .mac! If I have to change email again it will be painful.
Has anyone else noticed that .Mac has gone down. The Mail servers are rejecting my password and I'm getting a Server Error when logging in at www.mac.com.
Hope they are fixing something. Been slow as $&%^ lately and several times Ive tried to upload a rather large file to my shared folder I got disconnected.
IMAP is definitely not working. For what .Mac costs this amount of downtime is really unacceptable. I've been thinking about not renewing. This pretty much clinches it because I can't think of any reason to keep it anyway, not for $200/yr.