I have a Plextor ConvertX with a USB 2 connection.

The only problem/issue that I have is that after a certain amount of time (usually 15 minutes, but always within a half hour of launch), EyeTV pauses.

This is a hassle as I have my rig hooked to a DVR and use the Plextor as a capture for digital cable, and to record from the DVR. There are a bunch of shows recorded on the DVR that I want to archive, and I often hit record on EyeTV and leave the room, only to come back to see it paused. This happens on all versions from 1.8.5-2.2.1.
I've trashed the prefs and even the whole app just to see it the same on reinstall.

I do have an ATI Remote Wonder...think that has something to do with it?

Other than that EyeTV software has run great for me.