Thanks Peccavi for taking the time to answer me.
We have now updated the software but no difference. My sons think it may be a transmitter problem although the bedroom TV that works through the same aerial is fine.
There is no other delay using any other commands on remote only the GUIDE.
We don't have SKY but BT Internet although we only use it if watching catch up or recordings. Most time we watch through the TV/Aerial.
Maggie R
August 2013