Clock resetting

Hey everyone just new to the forum. I have a 1999 Renault Megane Monte Carlo edition. The problem I'm having is that when I press the button on the passenger side for that window to go down it knocks off my clock and resets it to 0:00. I also have the same issue when I press the window demister as long as it is switched on the clock will remain blank. If I use my indictor to turn right then the light will flash on the screen however if I do it to turn left there is nothing wrong with it. Any ideas on where to begin? Thank you :)