Downloading works fine (only issue is that sound files somehow become deactivated on every second download). It is after updating the software the issue arises (or it has done on the last two occasions, but probably not a solid enough statistical basis for drawing a conclusion as to the cause). However, rather than getting into a fight with URC and spending lots of money is shipping, and being without the remote for weeks), I'll just not update the software and hope it will be stable...