Re: heard a pop now window will not stay open
Many of the modern windows have a spring system, usually in sort of a cartridge, on each side of the sliding portion of the window. This provides a counterbalance to help you lift the window and keep it up.
The spring may have broken, or perhaps just become disengaged. Without seeing a picture of the offending window, it's hard to tell you how to fix it. If the spring is broken, you should be able to get a replacement spring cartridge from the manufacturer or a dealer.
The "Senior Member" designation under my name doesn't mean I know a lot, it just means I talk a lot.I've been a DIYer since I was 12 (thanks, Dad!). I have read several books on various home improvement topics. I do not have any current code books I can refer to. I was an apprentice plumber for two years.