zoom fails on new win11 machine

I have been using zoom for years. I have a brand new windows 11 machine; all updates/patches/software everyting up tp date. My weekly zoom meeting worked fine the first time on this new machine, but not since. I click the link to enter the meeting, as I have always done; the meeting opens, we have video. Unlike when zoom used to work, a window pops up with a button that says Use Computer Audio. When I click that button, the zoom application simply quits, the window disappears, connection lost. Please tell me how to correct this situation, or fix the program, or something.