Aaron,
For one client we did not purchase the CK75’s because of the resolution issue. The vendor was kind enough to let us borrow several different units so we could determine which one would work best for us. The CK3X and CK3R were selected and those units have been being used ever since they were purchased several years ago.
Since setting up handhelds is so tricky and Epicor doesn’t provide much guidance, awhile back I hacked together a setup guide:
If I recall the 10 min timeout is not something that can be fixed as I think it is a security feature baked into the Windows Mobile RDP program.
Perhaps it’s not too late to try to trade them in for CK3’s?