Hey all

My lowrance elite 5 is taking a long time to get a gps fix it's pretty annoying at the moment, it's been happening for a while now, but what I found yesterday is if I take out navionics card if finds gps pretty much straight away, but then when I put the card back in it drops out again straight away, turning it on and off a few times and pulling the cable out and back in it will finally get a gps signal, so I am wondering if my navionics card is the problem has anyone else had this problem on there unit  or give advice as to why this is happening, I have it mounted on dash and always put it away before I wash boat down so I don't think it has got any water in it as it has a cover over the card slot anyway cheers