Hi Ulf,
I got the same problem under OZ 3.3.5, though I don't start any apps on my Z. It just sits in the cradle and after some hours, connection between Windows 2000 Pro and my Z gets lost. When this happens my Z turns on the lights.
Just like you experienced, after re-inserting my Z into the cradle connection is back.
I am using "Intellisync for SL" via USB.
There's a similar problem which I had related to hangs/freezes when resuming Z while it's in the cradle:
https://www.oesf.org/forums/inde...p?showtopic=407As proposed by Mickeyl in the thread which I mentioned above I installed "usdb-common" which solved the freeze issue. But to get my Z back to talk to my W2k PC again, I still need to re-insert it into the cradle.
Frank