Thanks for all the replies.
I am quite happy to accept a tolerance of about a couple of seconds a day for clock accuracy. Both my 48G calcs are actually better than this.
However, I am not prepared to accept the level of accuracy being shown in my 50G which is currently losing about 5 minutes a day. That is completely ridiculous and I am going to negotiate a refund or replacement from the dealer.
Yes, I can write a simple clock adjust program running off an alarm but it boggles the mind that this should be necessary on what is currently HP's top calc and in theory, one of the best calcs ever made.
The sad thing is that after the huge disappointment of the 35s and now this fiasco with the 50g, can I trust any new HP calc? I've said before that I consider the 48GX to be the last great true HP calc but I never expected it would retain that mantle because its replacement has fundamental problems such as not being able to keep time!
One of the reasons I bought the 50g was to use a style of programming that the 48GX doesn't quite have enough speed for and that style of programming is dependent on clock accuracy.
What an utter huge disappointment all of this is.
Mark