Loop noise

[Jųan]

Greetings Picbasicans, my 16F877 is connected to a radio. Some of my functions have loops, eg:



Loop:
Display time on LCD
Display frequency
Some other command
pause 25
BUTTON Pin1,Down,Delay,Rate,BVar,Action,Label1
BUTTON Pin2,Down,Delay,Rate,BVar,Action,Label2
BUTTON Pin3,Down,Delay,Rate,BVar,Action,Label3
'' " "
goto loop

The thing is that I can hear this loop through the speakers, eg, I can hear a put put put put every 25 cycles. Changing the pause time will only change the frequency of the pulses. Any suggestions how I can get rid of this. I have tried using while wend command but I need to refresh other commands (eg: diplay time). Any comments are appreciated.

Regards

Juan