sky box acting up

been having problems with my ( 2nd ) new sky + box off late and the funny thing is , its a replacement for one i only had installed in july , baschically , whenever i turn it on for the 1st time on a particular day , its like its loading up for the very 1st time , a message comes on screen ( once you press the on button ) with the sky emblem and you are asked to wait while it loads , this takes at least 30 seconds and then the screen changes and another message comes up asking you to press back up , having done that the screen goes to the sky intro page

as i said , this is the second box , they sent out a guy only a week ago and he simply replaced the old one , another problem with both this box and the 1st one is the on screen tv listing when you press the blue button , its often inaccurate , for instance , i turned on the tv last night at 7 pm and it stated that premiership live was presently on and that the X factor was also presently on , in actual fact neither show had even begun at 7 pm , i wouldnt mind if it was a case of one in a thousand boxes being faulty but this is the second one in the space of two months which have exhibited the exact same flaws

i had a pace sky ( non + or hd ) box for nine years which never gave a seconds trouble, theese are both amstrad , the sky guy who came out last week told me pace were troublesome but that amstral never give trouble , go figure